Add admin user guide for product update

README.md

@@ -70,6 +70,7 @@ Before following the below instructions, please ensure that you have met all the
 - [Adding support for new language in SSID](doc/add_support_for_new_language.md)
 - [Deploying SSID app on a Linux/Unix production server](doc/deploying_rails_on_linux.md)
 - [Guide for semestral clearing of courses and submissions](doc/semestral_clearing_guide.md)
+- [Setting product update announcement](doc/set_product_update_message)
 - [User Guide](doc/SSID_User%20Guide_V2.pdf)
 
 ## Contact

doc/set_product_update_message.md

@@ -0,0 +1,20 @@
+Setting product update announcement
+=======================
+
+This guide lists the steps required to use SSID's product update announcements. This feature might be used to announce new feature releases or updates for greater feature awareness and discovery.
+
+The product update message appears on the Home tab of SSID after the user logs in as in the following figure:
+
+![Product update announcement](https://user-images.githubusercontent.com/29513997/208039798-c23b8df5-b98e-45e6-a979-8255b3946a6b.png)
+
+The product update message can be set using the rake task 
+`rake SSID:set_product_update_message[message]`.
+
+You can toggle the visibility of the message using the following rake tasks:
+- `rake SSID:set_product_update_visibility['Y']` for making the message visible.
+- `rake SSID:set_product_update_visibility['N']` for making the message invisible.
+
+The commands should be appropriately adapted based on your local setup. For instance, you might need to prepend it with `bundle exec` or use escape characters for symbols e.g. `bundle exec rake SSID:set_product_update_message\["Now you can print reports with multiple student pairs\!"\]`).
+
+Refer to this video demo for usage example: 
+[https://youtu.be/DtyGSvB5m-U](https://youtu.be/DtyGSvB5m-U)