New My content tabs mentioned in Dashboard block reference (#376)

Author: julitafalcondusza

docs/getting_started/dashboard/dashboard_block_reference.md

@@ -58,6 +58,8 @@ On the **Properties** tab, set values in the following fields:
 
 On the **Design** tab, in the **View** field, select the layout to be used to present a list of content and submit your changes.
 
+With the [Collaborative editing LTS update](collaborative_editing.md), two new tabs are available in **My content** block: **My shared drafts** and **Drafts shared with me**.
+
 ## Orders by status block [[% include 'snippets/commerce_badge.md' %]]
 
 Displays a chart presenting orders split by status, with their number and percentage.