message: Change my-buddy to github-handle
  This change has the dual benefit of being both more descriptive and gender neutral
diff: @@ -164,8 +164,8 @@ may change over time! The owner of a crate is the only person allowed to publish
  new versions of the crate, but an owner may designate additional owners.
  ```console
  -$ cargo owner --add my-buddy
  -$ cargo owner --remove my-buddy
  +$ cargo owner --add github-handle
  +$ cargo owner --remove github-handle
  $ cargo owner --add github:rust-lang:owners
  $ cargo owner --remove github:rust-lang:owners
  ```
  