Fix structure and add notification level

doc/workflow/notifications.md

@@ -10,31 +10,32 @@ You can find notification settings under the user profile.
 
 Notification settings are divided into three groups:
 
-* Global Settings
-* Group Settings
-* Project Settings
+- Global settings
+- Group settings
+- Project settings
 
 Each of these settings have levels of notification:
 
-* Disabled - turns off notifications
-* Participating - receive notifications from related resources
-* Watch - receive notifications from projects or groups user is a member of
-* Global - notifications as set at the global settings
-* Custom - user will receive notifications when mentioned, is participant and custom selected events.
+- Watch: Receive notifications for any activity.
+- On Mention: Receive notifications when `@mentioned` in comments.
+- Participate: Receive notifications for threads you have participated in.
+- Disabled: Turns off notifications.
+- Custom: Receive notifications for custom selected events.
+- Global: For groups and projects, notifications as per global settings.
 
-#### Global Settings
+### Global Settings
 
-Global Settings are at the bottom of the hierarchy.
+Global settings are at the bottom of the hierarchy.
 Any setting set here will be overridden by a setting at the group or a project level.
 
 Group or Project settings can use `global` notification setting which will then use
 anything that is set at Global Settings.
 
-#### Group Settings
+### Group Settings
 
 ![notification settings](img/notification_group_settings.png)
 
-Group Settings are taking precedence over Global Settings but are on a level below Project or Subgroup Settings:
+Group settings are taking precedence over Global Settings but are on a level below Project or Subgroup settings:
 
 ```
 Group < Subgroup < Project
@@ -46,11 +47,11 @@ Organization like this is suitable for users that belong to different groups but
 same need for being notified for every group they are member of.
 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
+### Project Settings
 
 ![notification settings](img/notification_project_settings.png)
 
-Project Settings are at the top level and any setting placed at this level will take precedence of any
+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 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.
@@ -73,11 +74,12 @@ Below is the table of events users can be notified of:
 ### Issue / Merge request events
 
 In most of the below cases, the notification will be sent to:
+
 - Participants:
   - the author and assignee of the issue/merge request
   - authors of comments on the issue/merge request
   - anyone mentioned by `@username` in the issue/merge request title or description
-  - anyone mentioned by `@username` in any of the comments on the issue/merge request  
+  - anyone mentioned by `@username` in any of the comments on the issue/merge request
      ...with notification level "Participating" or higher
 - Watchers: users with notification level "Watch"
 - Subscribers: anyone who manually subscribed to the issue/merge request
@@ -129,16 +131,19 @@ Notification emails include headers that provide extra content about the notific
 | X-GitLab-NotificationReason | The reason for being notified. "mentioned", "assigned", etc             |
 
 #### X-GitLab-NotificationReason
+
 This header holds the reason for the notification to have been sent out,
 where reason can be `mentioned`, `assigned`, `own_activity`, etc.
 Only one reason is sent out according to its priority:
+
 - `own_activity`
 - `assigned`
 - `mentioned`
 
-The reason in this header will also be shown in the footer of the notification email.  For example an email with the
+The reason in this header will also be shown in the footer of the notification email. For example an email with the
 reason `assigned` will have this sentence in the footer:
 `"You are receiving this email because you have been assigned an item on {configured GitLab hostname}"`
 
-**Note: Only reasons listed above have been implemented so far**
-Further implementation is [being discussed here](https://gitlab.com/gitlab-org/gitlab-ce/issues/42062)
+NOTE: **Note:**
+Only reasons listed above have been implemented so far.
+Further implementation is [being discussed](https://gitlab.com/gitlab-org/gitlab-ce/issues/42062).