Merge branch 'mjang-doc-ellipsis-style' into 'master'

Entry for Vertical Ellipsis

See merge request gitlab-org/gitlab!27638

doc/development/documentation/styleguide.md

@@ -972,6 +972,7 @@ The following are examples of source Markdown for menu items with their publishe
 1. Go to **{book}** **Wiki**
 1. Go to **{snippet}** **Snippets**
 1. Go to **{users}** **Members**
+1. Select the **More actions** **{ellipsis_v}** icon  > **Hide stage**
 ```
 
 1. Go to **{home}** **Project overview > Details**
@@ -986,6 +987,7 @@ The following are examples of source Markdown for menu items with their publishe
 1. Go to **{book}** **Wiki**
 1. Go to **{snippet}** **Snippets**
 1. Go to **{users}** **Members**
+1. Select the **More actions** **{ellipsis_v}** icon > **Hide stage**
 
 ## Alert boxes