message: doc: update labels in CONTRIBUTING.md
diff: @@ -80,21 +80,15 @@ The title of the pull request should be prefixed by the component or area that
  the pull request affects. Valid areas as:
  - *Consensus* for changes to consensus critical code
  - - *Docs* for changes to the documentation
  + - *Doc* for changes to the documentation
  - *Qt* for changes to bitcoin-qt
  + - *Log* Changes to log messages
  - *Mining* for changes to the mining code
  - *Net* or *P2P* for changes to the peer-to-peer network code
  + - *Refactor* for structural changes that do not change behavior
  - *RPC/REST/ZMQ* for changes to the RPC, REST or ZMQ APIs
  - *Scripts and tools* for changes to the scripts and tools
  - - *Tests* for changes to the bitcoin unit tests or QA tests
  - - *Trivial* should **only** be used for PRs that do not change generated
  - executable code. Notably, refactors (change of function arguments and code
  - reorganization) and changes in behavior should **not** be marked as trivial.
  - Examples of trivial PRs are changes to:
  - - comments
  - - whitespace
  - - variable names
  - - logging and messages
  + - *Test* for changes to the bitcoin unit tests or QA tests
  - *Utils and libraries* for changes to the utils and libraries
  - *Wallet* for changes to the wallet code
  @@ -103,7 +97,7 @@ Examples:
  Consensus: Add new opcode for BIP-XXXX OP_CHECKAWESOMESIG
  Net: Automatically create hidden service, listen on Tor
  Qt: Add feed bump button
  - Trivial: Fix typo in init.cpp
  + Log: Fix typo in log message
  Note that translations should not be submitted as pull requests, please see
  [Translation Process](https://github.com/bitcoin/bitcoin/blob/master/doc/translation_process.md)
  