Update documentation

CHANGELOG

@@ -36,6 +36,7 @@ v 8.8.0 (unreleased)
   - Added button to toggle whitespaces changes on diff view
   - Backport GitHub Enterprise import support from EE
   - Create tags using Rugged for performance reasons. !3745
+  - Allow guests to set notification level in projects
   - API: Expose Issue#user_notes_count. !3126 (Anton Popov)
   - Don't show forks button when user can't view forks
   - Files over 5MB can only be viewed in their raw form, files over 1MB without highlighting !3718

app/models/user.rb

@@ -777,7 +777,7 @@ class User < ActiveRecord::Base
   end
 
   def notification_settings_for(source)
-    notification_setting  = notification_settings.find_or_initialize_by(source: source)
+    notification_setting = notification_settings.find_or_initialize_by(source: source)
 
     if source.is_a?(Project) && !source.team.member?(id) && !notification_setting.persisted?
       notification_setting.level = :disabled

doc/workflow/notifications.md

@@ -69,7 +69,7 @@ In all of the below cases, the notification will be sent to:
 
     ...with notification level "Participating" or higher
 
-- Watchers: project members with notification level "Watch"
+- Watchers: users with notification level "Watch"
 - Subscribers: anyone who manually subscribed to the issue/merge request
 
 | Event                  | Sent to |