Update team usage docs

- Remove old Streamlit paragraph

Author: smstone0

docs/technical_documentation/team_usage.md

@@ -19,17 +19,15 @@ To retrieve data, a team must meet the following criteria:
 
 When on the team usage page, a `Login with GitHub` is displayed. Once clicked on, the user is taken to GitHub's authorisation page. The permissions **read-only** personal user data and **read-only** organizations and teams are required for this application. Clicking on the green `Authorize` button takes the user back to the application.
 
-The session is saved to streamlit's `session_state`. For security, the session resets after refresh but not when navigating between pages. This means the user has to press the `Login with GitHub` button each page refresh.
-
 ### Types of Access
 
 #### Regular User
 
-A user within ONSDigital. Upon authentication, the app identifies the teams they belong to and populates the selection box accordingly. If the user is part of a qualifying team, they can view the data. Users not associated with any team cannot select teams.
+A user within ONSDigital. Upon authentication, the app identifies the teams they belong to and populates the UI selection accordingly. If the user is part of a qualifying team, they can view the data. Users not associated with any team cannot select teams.
 
 #### Admin User
 
-An enhanced regular user with the ability to search for any team. This user belongs to a specific whitelisted team, enabling them to view metrics for any team that meets the Copilot usage data requirements.
+An enhanced regular user with the ability to view any team. This user belongs to a specific whitelisted team, enabling them to view metrics for any team that meets the Copilot usage data requirements.
 
 ## Metrics