message: dco/docs: email in angular braces
diff: @@ -93,7 +93,7 @@ Which will look something like the following in the repo;
  ```
  Awesome commit message
  -Signed-off-by: Jane Smith jane.smith@example.com
  +Signed-off-by: Jane Smith <jane.smith@example.com>
  ```
  - In case you forgot to add it to the most recent commit, use `git commit --amend --signoff`
  