Adding feature documentation on Supervisor CHW create feature (#994)

* Adding feature documentation on Supervisor CHW create feature

* Add link to technical configuration

* Making the content less technical and more consumable

* Update content/en/apps/features/supervision/_index.md

Co-authored-by: Michael Kohn <michael@medicmobile.org>

* Update content/en/apps/features/supervision/_index.md

Co-authored-by: Michael Kohn <michael@medicmobile.org>

* Update content/en/apps/features/supervision/_index.md

Co-authored-by: Michael Kohn <michael@medicmobile.org>

* Update content/en/apps/features/supervision/_index.md

---------

Co-authored-by: Michael Kohn <michael@medicmobile.org>

content/en/apps/features/supervision/_index.md

@@ -8,6 +8,7 @@ relatedContent: >
   apps/features/targets
   design/best-practices/#targets
   apps/features/integrations/dhis2
+  apps/reference/app-settings/transitions#create_user_for_contacts
   apps/examples/supervisor-reference-app
 ---
 
@@ -47,3 +48,11 @@ The CHT can be configured to create [Tasks]({{< relref "apps/features/tasks" >}}
 ### Deployment Case Study
 [Muso](https://www.musohealth.org), a leading community health organization and major contributor to the CHT, has implemented ”360º supervision”, achieving some of the lowest child mortality rates in sub-Saharan Africa. This model provides dedicated mentorship and supportive supervision to CHWs tailored to each CHW's particular strengths and challenges. A key theme of our human-centered approach was the idea of using data to improve one-to-one supervision, rather than using analytics to replace Supervisors. Read more about findings from a recent [randomized controlled trial](https://medic.org/stories/new-study-precision-supervision-and-personalized-feedback-dashboards-improve-chw-performance-in-mali/).
 {{% /pageinfo %}}
+
+## User Management
+Supervisors are able to set up users in the CHT without contacting a system administrator. They can **create** new CHW user accounts or **replace** CHWs on an existing device. 
+
+When _creating_ a new user account, Supervisors fill out the necessary details, including the CHW's phone number, from their own device. They can do this while offline, but must sync before the actual user account is created. Once the Supervisor syncs, the CHT will send an SMS to the new CHW with a link that enables them to start using the app.
+
+When _replacing_ a CHW, Supervisors access the existing device and provide details about the new CHW. The new CHW can start using the app immediately, even while offline, and will see all of the existing household data. Once the new CHW syncs, the records on the server will be updated to reflect the new CHWs details.  
+This can be used to manage both CHW and CHW supervisor roles.