Patch 22857720 don't have proper instructions

To determine if the steps in the patch description are pre-patch (to be done before applying the patch) or post-patch (to be done after applying the patch), I would need to see the actual steps described in the patch. Could you please provide the details of the patch description steps?

Description
Recommended custom indexes: create index AR. AR_CASH_RECEIPTS_TT on AR.AR_CASH_RECEIPTS_ALL(receipt_Date,REMIT_BANK_ACCT_USE_ID,type) parallel nologging; alter index AR. AR_CASH_RECEIPTS_TT noparallel logging; create index CE.CE_STATEMENT_RECONCILS_T on CE.CE_STATEMENT_RECONCILS_ALL(org_id,request_id) parallel nologging; alter index CE.CE_STATEMENT_RECONCILS_T noparallel logging;