update changelog

Author: samukweku

CHANGELOG.md

@@ -5,6 +5,7 @@
 -   [ENH] Fix bug in `pivot_longer` for wrong output when `names_pattern` is a sequence with a single value. Issue #885 @samukweku
 -   [ENH] Deprecate `aggfunc` from `pivot_wider`; aggregation can be chained with pandas' `groupby`.
 -   [BUG] Fix conditional join issue for multiple conditions, where pd.eval fails to evaluate if numexpr is installed. #898 @samukweku
+-   [ENH] Deprecate `new_column_names` and `merge_frame` from `process_text`. Only existing columns are supported. @samukweku
 
 ## [v0.21.1] - 2021-08-29
 
@@ -25,7 +26,6 @@
 -   [EHN] Set `expand_column`'s `sep` default is `"|"`, same to `pandas.Series.str.get_dummies`. Issue #876. @Zeroto521
 -   [ENH] Deprecate `limit` from fill_direction. fill_direction now uses kwargs. @samukweku
 -   [ENH] Added `conditional_join` function that supports joins on non-equi operators. @samukweku
--   [ENH] Deprecate `new_column_names` and `merge_frame` from `process_text`. Only existing columns are supported. @samukweku
 -   [INF] Speed up pytest via `-n` (pytest-xdist) option. Issue #881. @Zeroto521
 -   [DOC] Add list mark to keep `select_columns`'s example same style. @Zeroto521
 -   [ENH] Updated `rename_columns` to take optional function argument for mapping. @nvamsikrishna05