fix: generalize DEVELOPMENT.md lint files description (#2367)

## PR Checklist

- [x] Addresses an existing open issue: fixes #2366
- [x] That issue was marked as [`status: accepting
prs`](https://github.com/JoshuaKGoldberg/create-typescript-app/issues?q=is%3Aopen+is%3Aissue+label%3A%22status%3A+accepting+prs%22)
- [x] Steps in
[CONTRIBUTING.md](https://github.com/JoshuaKGoldberg/create-typescript-app/blob/main/.github/CONTRIBUTING.md)
were taken

## Overview

🎁

Author: JoshuaKGoldberg

.github/DEVELOPMENT.md

@@ -50,7 +50,7 @@ pnpm format --write
 This package includes several forms of linting to enforce consistent code quality and styling.
 Each should be shown in VS Code, and can be run manually on the command-line:
 
-- `pnpm lint` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files
+- `pnpm lint` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript
 - `pnpm lint:knip` ([knip](https://github.com/webpro/knip)): Detects unused files, dependencies, and code exports
 - `pnpm lint:packages` ([pnpm dedupe --check](https://pnpm.io/cli/dedupe)): Checks for unnecessarily duplicated packages in the `pnpm-lock.yaml` file
 - `pnpm lint:spelling` ([cspell](https://cspell.org)): Spell checks across all source files

src/blocks/blockESLint.test.ts

@@ -42,7 +42,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -163,7 +163,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -320,7 +320,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -510,7 +510,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -681,7 +681,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -828,7 +828,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -988,7 +988,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -1136,7 +1136,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -1259,7 +1259,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -1385,7 +1385,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -1511,7 +1511,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },
@@ -1634,7 +1634,7 @@ describe("blockESLint", () => {
 			Each should be shown in VS Code, and can be run manually on the command-line:
 			",
 			              "items": [
-			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files",
+			                "- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript",
 			              ],
 			              "plural": "Read the individual documentation for each linter to understand how it can be configured and used best.",
 			            },

src/blocks/blockESLint.ts

@@ -146,7 +146,7 @@ This package includes several forms of linting to enforce consistent code qualit
 Each should be shown in VS Code, and can be run manually on the command-line:
 `,
 								items: [
-									`- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints JavaScript and TypeScript source files`,
+									`- \`pnpm lint\` ([ESLint](https://eslint.org) with [typescript-eslint](https://typescript-eslint.io)): Lints source files, including JavaScript, Markdown, and TypeScript`,
 								],
 								plural: `Read the individual documentation for each linter to understand how it can be configured and used best.`,
 							},