help center: Document message actions.

templates/zerver/help/include/sidebar_index.md

@@ -77,6 +77,7 @@
 ## Reading messages
 * [Reading strategies](/help/reading-strategies)
 * [Recent conversations](/help/recent-conversations)
+* [Message actions](/help/message-actions)
 * [Marking messages as read](/help/marking-messages-as-read)
 * [Marking messages as unread](/help/marking-messages-as-unread)
 * [Emoji reactions](/help/emoji-reactions)

templates/zerver/help/message-actions.md

@@ -0,0 +1,14 @@
+# Message actions
+
+There are many ways to interact with a Zulip message.
+
+![Streams and topics](/static/images/help/message-actions.png)
+
+## Related articles
+* [User cards](/help/user-cards)
+* [Emoji reactions](/help/emoji-reactions)
+* [View a message's edit history](/help/view-a-messages-edit-history)
+* [Rename a topic](/help/rename-a-topic)
+* [Resolve a topic](/help/resolve-a-topic)
+* [Mute a topic](/help/mute-a-topic)
+* [Link to a message or conversation](/help/link-to-a-message-or-conversation)

templates/zerver/help/user-cards.md

@@ -42,3 +42,4 @@ sent](/help/view-messages-sent-by-a-user).
 ## Related articles
 
 - [View someone's profile](/help/view-someones-profile)
+- [Message actions](/help/message-actions)