Revise docstrings in git.__init__ and git.cmd

Mainly for formatting.

git/__init__.py

@@ -122,18 +122,22 @@
 def refresh(path: Optional[PathLike] = None) -> None:
     """Convenience method for setting the git executable path.
 
-    :param path: Optional path to the Git executable. If not absolute, it is resolved
+    :param path:
+        Optional path to the Git executable. If not absolute, it is resolved
         immediately, relative to the current directory.
 
-    :note: The *path* parameter is usually omitted and cannot be used to specify a
-        custom command whose location is looked up in a path search on each call. See
+    :note:
+        The *path* parameter is usually omitted and cannot be used to specify a custom
+        command whose location is looked up in a path search on each call. See
         :meth:`Git.refresh` for details on how to achieve this.
 
-    :note: This calls :meth:`Git.refresh` and sets other global configuration according
-        to the effect of doing so. As such, this function should usually be used instead
-        of using :meth:`Git.refresh` or :meth:`FetchInfo.refresh` directly.
+    :note:
+        This calls :meth:`Git.refresh` and sets other global configuration according to
+        the effect of doing so. As such, this function should usually be used instead of
+        using :meth:`Git.refresh` or :meth:`FetchInfo.refresh` directly.
 
-    :note: This function is called automatically, with no arguments, at import time.
+    :note:
+        This function is called automatically, with no arguments, at import time.
     """
     global GIT_OK
     GIT_OK = False