Add project and group notification settings info

Notification settings are described, but aren't mentioned where they
are or where to change them.

doc/workflow/notifications.md

@@ -32,19 +32,23 @@ anything that is set at Global Settings.
 #### Group Settings
+![notification settings](notifications/group-settings.png)
+
 Group Settings are taking precedence over Global Settings but are on a level below Project Settings.
 This means that you can set a different level of notifications per group while still being able
 to have a finer level setting per project.
 Organization like this is suitable for users that belong to different groups but don't have the
 same need for being notified for every group they are member of.
-These settings can be configured on group page or user profile notifications dropdown.
+These settings can be configured on group page under the name of the group. It will be the dropdown with the bell icon. They can also be configured on the user profile notifications dropdown.
 #### Project Settings
+![notification settings](notifications/project-settings.png)
+
 Project Settings are at the top level and any setting placed at this level will take precedence of any
 other setting.
 This is suitable for users that have different needs for notifications per project basis.
-These settings can be configured on project page or user profile notifications dropdown.
+These settings can be configured on project page under the name of the project. It will be the dropdown with the bell icon. They can also be configured on the user profile notifications dropdown.
 ## Notification events