Add missing closing parentheses (pythonGH-8144)

Author: andresdelfino

Doc/library/stdtypes.rst

@@ -2315,7 +2315,7 @@ data and are closely related to string objects in a variety of other ways.
    While bytes literals and representations are based on ASCII text, bytes
    objects actually behave like immutable sequences of integers, with each
    value in the sequence restricted such that ``0 <= x < 256`` (attempts to
-   violate this restriction will trigger :exc:`ValueError`. This is done
+   violate this restriction will trigger :exc:`ValueError`). This is done
    deliberately to emphasise that while many binary formats include ASCII based
    elements and can be usefully manipulated with some text-oriented algorithms,
    this is not generally the case for arbitrary binary data (blindly applying