Mention suggestions

docs/admin.rst

@@ -194,10 +194,13 @@ The default setup (after you run :djadmin:`setupgroups`) consists
 of two groups `Users` and `Managers` which have privileges as descibed above.
 All new users are automatically added to `Users` group.
 
-Basically `Users` are meant as regular translators and `Managers` for people
-who need more control over the translation - they can force commiting changes
-to git, push changes upstream (if Weblate is configured to do so) or disable
-translation (eg. when there are some major changes happening upstream).
+Additionally anonymous users are allowed to make suggestions to any translation.
+
+Basically `Users` are meant as regular translators and `Managers` for
+developers who need more control over the translation - they can force
+commiting changes to git, push changes upstream (if Weblate is configured to do
+so) or disable translation (eg. when there are some major changes happening
+upstream). 
 
 To customize this setup, it is recommended to remove privileges from `Users`
 group and create additional groups with finer privileges (eg. `Translators`