Define a verb for clicking an item or link in a list of links (github#23943)

* Expand dropdown menus to all list types

* make alphabetical

Author: ethanpalm

contributing/content-style-guide.md

@@ -448,16 +448,17 @@ Format checkbox names in bold and omit the word “checkbox.” To describe choo
 - **Use:** Select **Enable for all new repositories**.
 - **Avoid:** Check the “Enable for all new repositories” checkbox.
 
-### Dropdown menus
-
-Format dropdown menus in bold and format clickable items within a menu in bold. Select dropdown menus (regardless of whether the menu name is a word or an octicon), and click their menu items.
-- **Use:** Select the **Backup email addresses** dropdown menu and click **Only allow primary email**.
-
 ### Dynamic text
 
 Use capital letters to indicate text that changes in the user interface or that the user needs to supply in a command or code snippet.
 - **Use:** Click **Add USERNAME to REPONAME**.
 
+### Lists and list items
+
+Format lists and clickable list items in bold. To describe interacting with a list, such as a dropdown menu or UI element that expands, regardless of whether the list name is a word or an octicon, write "select." To describe choosing a list item, write "click."
+- **Use:** Select the **Backup email addresses** dropdown menu and click **Only allow primary email**.
+- **Avoid:** Click the "Backup email addresses" dropdown menu and click **Only allow primary email**.
+
 ### Location
 
 Describe a user interface element’s location with standard terms.