message: [documentation] Added inclusive terminology.
  Closes:
  Approved by: sblackshear
diff: @@ -53,6 +53,14 @@ struct Point {
  }
  ```
  +### Terminology
  +
  +The Libra codebase uses inclusive terminology (similar to other projects such as [the Linux kernel](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=49decddd39e5f6132ccd7d9fdc3d7c470b0061bb)). The terms below are recommended when appropriate.
  +* allowlist - a set of entities allowed access
  +* denylist - a set of entities denied access
  +* primary/leader/main - a primary entity
  +* secondary/replica/follower - a secondary entity
  +
  ### Constants and fields
  Describe the purpose and definition of this data.
  