Improve docstrings for SON parameters (#919)

Author: dunkOnIT

pymongo/collection.py

@@ -246,7 +246,7 @@ def _command(
 
         :Parameters:
           - `sock_info` - A SocketInfo instance.
-          - `command` - The command itself, as a SON instance.
+          - `command` - The command itself, as a :class:`~bson.son.SON` instance.
           - `codec_options` (optional) - An instance of
             :class:`~bson.codec_options.CodecOptions`.
           - `check`: raise OperationFailure if there are errors
@@ -1443,7 +1443,7 @@ def find(self, *args: Any, **kwargs: Any) -> Cursor[_DocumentType]:
         this :class:`Collection`.
 
         :Parameters:
-          - `filter` (optional): a SON object specifying elements which
+          - `filter` (optional): a :class:`~bson.son.SON` object specifying elements which
             must be present for a document to be included in the
             result set
           - `projection` (optional): a list of field names that should be