message: doc: Add release note for the deprecated totalFee option of bumpfee
diff: @@ -88,6 +88,12 @@ Low-level Changes section below.
  `-limitancestorcount`, `-limitdescendantcount` and `-walletrejectlongchains`
  command line arguments.
  +Deprecated or removed RPCs
  +--------------------------
  +
  +- The `totalFee` option of the `bumpfee` RPC has been deprecated and will be
  + removed in 0.20. To continue using this option start with
  + `-deprecatedrpc=totalFee`. See the `bumpfee` RPC help text for more details.
  Low-level changes
  =================
  