👌 IMPROVE: Fix _isspace redundancy and docstring formatting in GFM plugins

Author: chrisjsewell

mdit_py_plugins/gfm/__init__.py

@@ -8,6 +8,7 @@
 - Task lists (built-in, markdown-it-py >= 4.1.0)
 - Alerts (built-in, markdown-it-py >= 4.1.0)
 - Footnotes (``[^label]`` references and definitions)
+
 Optional extras:
 
 - Dollar math (``$...$`` / ``$$...$$``)

mdit_py_plugins/gfm_autolink/_match.py

@@ -33,7 +33,7 @@ def _is_valid_hostchar(ch: str) -> bool:
 
 
 def _isspace(ch: str) -> bool:
-    return ch in _SPACE_CHARS or ch == "\r" or ch == "\n"
+    return ch in _SPACE_CHARS
 
 
 _LINK_END_ASSORTMENT = frozenset("?!.,:*_~'\"[]")