chore(hoisting): fix typo (#15)

Author: sublimeye

questions/explain-hoisting/en-US.mdx

@@ -118,7 +118,7 @@ import foo from './modules/foo';
 
 ## Under the hood
 
-In reality, JavaScript creates all variables in the current scope before it even tries to executes the code. Variables created using `var` keyword will have the value of `undefined` where variables created using `let` and `const` keywords will be marked as `<value unavailable>`. Thus, accessing them will cause a `ReferenceError` preventing you to access them before initialization.
+In reality, JavaScript creates all variables in the current scope before it even tries to execute the code. Variables created using `var` keyword will have the value of `undefined` where variables created using `let` and `const` keywords will be marked as `<value unavailable>`. Thus, accessing them will cause a `ReferenceError` preventing you to access them before initialization.
 
 In ECMAScript specifications `let` and `const` declarations are [explained as below](https://tc39.es/ecma262/#sec-let-and-const-declarations):