DOC: Enforce Numpy Docstring Validation for pandas.Index.get_indexer_for (#58507)

* DOC: add PR01,SA01 in pandas.Index.get_indexer_for

* DOC: remove PR01,SA01 in pandas.Index.get_indexer_for

Author: tuhinsharma121

ci/code_checks.sh

@@ -84,7 +84,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.DataFrame.var PR01,RT03,SA01" \
         -i "pandas.Grouper PR02" \
         -i "pandas.Index PR07" \
-        -i "pandas.Index.get_indexer_for PR01,SA01" \
         -i "pandas.Index.get_loc PR07,RT03,SA01" \
         -i "pandas.Index.join PR07,RT03,SA01" \
         -i "pandas.Index.names GL08" \

pandas/core/indexes/base.py

@@ -5953,11 +5953,23 @@ def get_indexer_for(self, target) -> npt.NDArray[np.intp]:
         This dispatches to get_indexer or get_indexer_non_unique
         as appropriate.
 
+        Parameters
+        ----------
+        target : Index
+            An iterable containing the values to be used for computing indexer.
+
         Returns
         -------
         np.ndarray[np.intp]
             List of indices.
 
+        See Also
+        --------
+        Index.get_indexer : Computes indexer and mask for new index given
+            the current index.
+        Index.get_non_unique : Returns indexer and masks for new index given
+            the current index.
+
         Examples
         --------
         >>> idx = pd.Index([np.nan, "var1", np.nan])