Fix doc for canonicalize_version to mention strip_trailing_zero and a typo in a docstring (#801)

Co-authored-by: Laurent Dufloux <[email protected]>

Author: Laurent-Dx

docs/utils.rst

@@ -56,11 +56,12 @@ Reference
         >>> is_normalized_name("Django")
         False
 
-.. function:: canonicalize_version(version)
+.. function:: canonicalize_version(version, strip_trailing_zero=True)
 
     This function takes a string representing a package version (or a
     :class:`~packaging.version.Version` instance), and returns the
-    normalized form of it.
+    normalized form of it. By default, it strips trailing zeros from
+    the release segment.
 
     :param str version: The version to normalize.
 

src/packaging/metadata.py

@@ -167,7 +167,7 @@ class RawMetadata(TypedDict, total=False):
 
 
 def _parse_keywords(data: str) -> list[str]:
-    """Split a string of comma-separate keyboards into a list of keywords."""
+    """Split a string of comma-separated keywords into a list of keywords."""
     return [k.strip() for k in data.split(",")]