Update docs for /groupadd

and changelog

CHANGELOG

@@ -6,7 +6,10 @@ https://dev.louiz.org/projects/poezio/roadmap
 
 - A lot of cleanup and refactor in order to use cython on the codebase
   more easily.
+- A new poezio_logs script to make logfiles more human-readable
 - Substantial performance improvements
+- Added a new confirmation tab and used it for cert warnings and XEP-0070
+- Added support for XEP-0070 (HTTP request verification)
 - Enabled carbons (XEP-0280) by default
 - Added support for XEP-0198 (stream management)
 - Added support for XEP-0352 (client state indication)

doc/source/commands.rst

@@ -504,10 +504,12 @@ Roster tab commands
         Change your password.
 
     /groupadd
-        **Usage:** ``/groupadd <jid> <group>``
+        **Usage:** ``/groupadd (<jid> <group>|<group>)
 
         Add the given JID to the given group (if the group
-        does not exist, it will be created).
+        does not exist, it will be created). If no jid is provided,
+        the currently selected item on the roster (resource or JID)
+        will be used.
 
     /groupmove
         **Usage:** ``/groupmove <jid> <old_group> <new_group>``