message: Fix branding in developer doc
diff: @@ -476,12 +476,12 @@ Subtrees
  Several parts of the repository are subtrees of software maintained elsewhere.
  -Some of these are maintained by active developers of Bitcoin Core, in which case changes should probably go
  +Some of these are maintained by active developers of Bitcoin and Bitcoin Cash, in which case changes should probably go
  directly upstream without being PRed directly against the project. They will be merged back in the next
  subtree merge.
  Others are external projects without a tight relationship with our project. Changes to these should also
  -be sent upstream but bugfixes may also be prudent to PR against Bitcoin Core so that they can be integrated
  +be sent upstream but bugfixes may also be prudent to PR against Bitcoin Unlimited so that they can be integrated
  quickly. Cosmetic changes should be purely taken upstream.
  There is a tool in contrib/devtools/git-subtree-check.sh to check a subtree directory for consistency with
  @@ -700,7 +700,7 @@ A few guidelines for introducing and reviewing new RPC interfaces:
  RPCs whose behavior does *not* depend on the current chainstate may omit this
  call.
  - - *Rationale*: In previous versions of Bitcoin Core, the wallet was always
  + - *Rationale*: In previous versions of Bitcoin, the wallet was always
  in-sync with the chainstate (by virtue of them all being updated in the
  same cs_main lock). In order to maintain the behavior that wallet RPCs
  return results as of at least the highest best-known block an RPC
  