changed version to v0.22.0

Author: nchmura4

pandas/io/formats/style.py

@@ -796,7 +796,7 @@ def hide_index(self):
         """
         Hide any indices from rendering.
 
-        .. versionadded:: 0.21.0
+        .. versionadded:: 0.22.0
 
         Returns
         -------
@@ -809,7 +809,7 @@ def hide_columns(self, subset):
         """
         Hide columns from rendering.
 
-        .. versionadded:: 0.21.0
+        .. versionadded:: 0.22.0
 
         Parameters
         ----------