DOC: fix RT03,SA01 for pandas.period_range (#59958)

Author: tuhinsharma121

ci/code_checks.sh

@@ -184,7 +184,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.io.stata.StataReader.variable_labels RT03,SA01" \
         -i "pandas.io.stata.StataWriter.write_file SA01" \
         -i "pandas.json_normalize RT03,SA01" \
-        -i "pandas.period_range RT03,SA01" \
         -i "pandas.plotting.andrews_curves RT03,SA01" \
         -i "pandas.plotting.lag_plot RT03,SA01" \
         -i "pandas.plotting.scatter_matrix PR07,SA01" \

pandas/core/indexes/period.py

@@ -563,6 +563,14 @@ def period_range(
     Returns
     -------
     PeriodIndex
+        A PeriodIndex of fixed frequency periods.
+
+    See Also
+    --------
+    date_range : Returns a fixed frequency DatetimeIndex.
+    Period : Represents a period of time.
+    PeriodIndex : Immutable ndarray holding ordinal values indicating regular periods
+        in time.
 
     Notes
     -----