Sync docs from Discourse (#648)

Co-authored-by: GitHub Actions <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

docs/explanation/e-users.md

@@ -132,12 +132,6 @@ mysql> select Host,User,account_locked from mysql.user where User like 'mysql_ro
 > juju relate mysql myclientapp
 ```
 
-<a name="extra-user-roles"></a>
-### Extra user roles
-
-When an application charm requests a new user through the relation/integration it can specify that the user should have the `admin` role in the `extra-user-roles` field. The `admin` role enables the new user to read and write to all databases (for the `mysql` system database it can only read data) and also to create and delete non-system databases.
-
-**Note**: `extra-user-roles` is supported by modern interface `mysql_client` only and missing for legacy `mysql` interface. Read more about the supported charm interfaces [here](/t/10250).
 
 
 <a name="admin-port"></a>

docs/how-to/h-enable-tracing.md

@@ -24,7 +24,7 @@ This feature is available for Charmed MySQL revision 237+ only.
 Enabling tracing with Tempo requires that you:
 - Have deployed a Charmed MySQL application
   - See [How to manage units](https://discourse.charmhub.io/t/charmed-mysql-how-to-manage-units/9904)
-- Have deployed a 'cos-lite' bundle from the `latest/edge` track in a Kubernetes environment
+- Have deployed a 'cos-lite' bundle in a Kubernetes environment
   - See [Getting started on MicroK8s](https://charmhub.io/topics/canonical-observability-stack/tutorials/install-microk8s)
 
 ---
@@ -79,9 +79,9 @@ juju consume k8s:admin/cos.tempo
 
 <a href="#heading--consume"><h2 id="heading--consume"> Consume interfaces </h2></a>
 
-First, deploy [Grafana Agent](https://charmhub.io/grafana-agent) from the `latest/edge` channel:
+First, deploy [Grafana Agent](https://charmhub.io/grafana-agent) from the `1/stable` channel:
 ```shell
-juju deploy grafana-agent --channel latest/edge
+juju deploy grafana-agent --channel 1/stable
 ```
 
 Then, integrate Grafana Agent with Charmed MySQL:
@@ -105,7 +105,7 @@ SAAS   Status  Store       URL
 tempo  active  k8s         admin/cos.tempo
 
 App            Version          Status   Scale  Charm          Channel      Rev  Exposed  Message
-grafana-agent                   blocked      1  grafana-agent  latest/edge  282  no       Missing ['grafana-cloud-config']|['grafana-dashboards-provider']|['logging-consumer']|['send-remote-write'] for cos-a...
+grafana-agent                   blocked      1  grafana-agent  1/stable     452  no       Missing ['grafana-cloud-config']|['grafana-dashboards-provider']|['logging-consumer']|['send-remote-write'] for cos-a...
 mysql          8.0.37-0ubun...  active       1  mysql                         0  no       
 
 Unit                Workload  Agent  Machine  Public address  Ports           Message