[Store operations] Update broken link in Troubleshooting of Orders Section

[tejaswini-malviya]

File Path -

oms-documentation/documents/store-operations/fulfillment/troubleshooting/unable-to-login.md

Line 17 in 446ffa1

For other users simply add the user to the facility from the Users App. To learn more about how users are added to facilites checkout the [user managment guide](https://docs.hotwax.co/documents/v/system-admins/administration/users/manageuser).

Broken link -
https://docs.hotwax.co/documents/system-admins/administration/users/manageuser
Suggested link -
https://docs.hotwax.co/documents/system-admins/administration/users/manage-user