Merge branch 'please-avoid-please' into 'master'

Add docs styleguide about using the word "please"

See merge request gitlab-org/gitlab!44469

doc/development/documentation/styleguide.md

@@ -584,6 +584,7 @@ tenses, words, and phrases:
 - Avoid the use of [racially-insensitive terminology or phrases](https://www.marketplace.org/2020/06/17/tech-companies-update-language-to-avoid-offensive-terms/). For example:
   - Use *primary* and *secondary* for database and server relationships.
   - Use *allowlist* and *denylist* to describe access control lists.
+- Avoid the word *please*. For details, see [the Microsoft style guide](https://docs.microsoft.com/en-us/style-guide/a-z-word-list-term-collections/p/please).
 
 ### Word usage clarifications