DOC: fix SA01 for pandas.errors.ChainedAssignmentError (#60390)

Author: tuhinsharma121

ci/code_checks.sh

@@ -109,7 +109,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.core.resample.Resampler.std SA01" \
         -i "pandas.core.resample.Resampler.transform PR01,RT03,SA01" \
         -i "pandas.core.resample.Resampler.var SA01" \
-        -i "pandas.errors.ChainedAssignmentError SA01" \
         -i "pandas.errors.DuplicateLabelError SA01" \
         -i "pandas.errors.IntCastingNaNError SA01" \
         -i "pandas.errors.InvalidIndexError SA01" \

pandas/errors/__init__.py

@@ -487,6 +487,11 @@ class ChainedAssignmentError(Warning):
     For more information on Copy-on-Write,
     see :ref:`the user guide<copy_on_write>`.
 
+    See Also
+    --------
+    options.mode.copy_on_write : Global setting for enabling or disabling
+        Copy-on-Write behavior.
+
     Examples
     --------
     >>> pd.options.mode.copy_on_write = True