Replace headers for sections about obtaining an access token

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Author: Suguru Hirahara

docs/configuring-playbook-dimension.md

@@ -26,7 +26,7 @@ matrix_dimension_admins:
 
 The admin interface is accessible within Element Web by accessing it in any room and clicking the cog wheel/settings icon in the top right. Currently, Dimension can be opened in Element Web by the "Add widgets, bridges, & bots" link in the room information.
 
-### Access token
+### Obtain an access token
 
 We recommend that you create a dedicated Matrix user for Dimension (`dimension` is a good username). Follow our [Registering users](registering-users.md) guide to learn how to register **a regular (non-admin) user**.
 

docs/configuring-playbook-user-verification-service.md

@@ -39,7 +39,7 @@ For a list of all configuration options see the role defaults [`roles/matrix-use
 
 In the default configuration, the UVS Server is only reachable via the docker network, which is fine if e.g. Jitsi is also running in a container on the host. However, it is possible to expose UVS via setting `matrix_user_verification_service_container_http_host_bind_port`.
 
-### Access token
+### Obtain an access token
 
 The Synapse Access Token is used to verify RoomMembership and PowerLevel against `matrix_user_verification_service_uvs_homeserver_url`.