DOC: fix PR02 for pandas.tseries.offsets.CBMonthBegin

Author: tuhinsharma121

ci/code_checks.sh

@@ -234,7 +234,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
         -i "pandas.tseries.offsets.BusinessMonthEnd.is_on_offset GL08" \
         -i "pandas.tseries.offsets.BusinessMonthEnd.n GL08" \
         -i "pandas.tseries.offsets.BusinessMonthEnd.normalize GL08" \
-        -i "pandas.tseries.offsets.CBMonthBegin PR02" \
         -i "pandas.tseries.offsets.CBMonthEnd PR02" \
         -i "pandas.tseries.offsets.CDay PR02,SA01" \
         -i "pandas.tseries.offsets.CustomBusinessDay PR02,SA01" \

pandas/_libs/tslibs/offsets.pyx

@@ -4713,7 +4713,7 @@ cdef class CustomBusinessMonthBegin(_CustomBusinessMonth):
 
     Increments between beginning of month dates.
 
-    Parameters
+    Attributes
     ----------
     n : int, default 1
         The number of months represented.