Sync docs from Discourse (#447)

Sync charm docs from https://discourse.charmhub.io

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

Author: github-actions[bot]

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

@@ -26,7 +26,7 @@ Enabling tracing with Tempo requires that you:
   - See [How to manage MySQL K8s units](https://discourse.charmhub.io/t/charmed-mysql-k8s-how-to-manage-units/9659)
 - Have deployed a Charmed MySQL Router K8s application in the same model as the Charmed MySQL application
   - See [How to manage MySQL Router K8s units](https://discourse.charmhub.io/t/mysql-router-k8s-how-to-manage-units/12240)
-- 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)
 
 ---
@@ -80,9 +80,9 @@ juju consume k8s:admin/cos.tempo
 
 <a href="#heading--consume"><h2 id="heading--consume"> Offer interfaces </h2></a>
 
-First, deploy [Grafana Agent K8s](https://charmhub.io/grafana-agent-k8s) from the `latest/edge` channel:
+First, deploy [Grafana Agent K8s](https://charmhub.io/grafana-agent-k8s) from the `1/stable` channel:
 ```shell
-juju deploy grafana-agent-k8s --channel latest/edge
+juju deploy grafana-agent-k8s --channel 1/stable
 ```
 
 Then, integrate Grafana Agent k8s with the consumed interface from the previous section:
@@ -105,7 +105,7 @@ SAAS   Status  Store       URL
 tempo  active  k8s         admin/cos.tempo
 
 App                Version                  Status  Scale  Charm              Channel        Rev  Address         Exposed  Message
-grafana-agent-k8s  0.40.4                   active      1  grafana-agent-k8s  latest/edge     93  10.152.183.141  no       grafana-dashboards-provider: off, logging-consumer: off, send-remote-write: off
+grafana-agent-k8s  0.40.4                   active      1  grafana-agent-k8s  1/stable       115  10.152.183.141  no       grafana-dashboards-provider: off, logging-consumer: off, send-remote-write: off
 mysql-k8s          8.0.37-0ubuntu0.22.04.3  active      1  mysql-k8s          8.0/edge       201  10.152.183.58   no       
 mysql-router-k8s   8.0.37-0ubuntu0.22.04.3  active      1  mysql-router-k8s                    1  10.152.183.50   no       
 mysql-test-app     0.0.2                    active      1  mysql-test-app     latest/stable   51  10.152.183.162  no       

docs/reference/r-releases.md

@@ -3,6 +3,7 @@
 The release notes for stable releases can be found in the charm's [GitHub releases page](https://github.com/canonical/mysql-router-k8s-operator/releases).
 
 The following revisions have been published in the `8.0/stable` [channel](https://juju.is/docs/sdk/channel):
+* [Revisions 747, 748](https://github.com/canonical/mysql-router-k8s-operator/releases/tag/rev747)
 * [Revisions 745, 746](https://github.com/canonical/mysql-router-k8s-operator/releases/tag/rev745)
 * [Revisions 598, 599](https://github.com/canonical/mysql-router-k8s-operator/releases/tag/rev598)
 * [Revisions 530, 531](https://github.com/canonical/mysql-router-k8s-operator/releases/tag/rev530)