Sync docs from Discourse (#401)

* Sync charm docs from https://discourse.charmhub.io
* Removed Vladimir as automatically tagged reviewer. This is expected to
fail the CLA check.

---------

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

Author: github-actions[bot]

.github/workflows/sync_docs.yaml

@@ -12,7 +12,7 @@ jobs:
     name: Sync docs from Discourse
     uses: canonical/data-platform-workflows/.github/workflows/[email protected]
     with:
-      reviewers: a-velasco,izmalk
+      reviewers: a-velasco
     permissions:
       contents: write  # Needed to push branch & tag
       pull-requests: write  # Needed to create PR

docs/how-to/h-rollback-major.md

@@ -0,0 +1,11 @@
+# Upgrade
+
+In-place upgrades/rollbacks are not possible for major versions.
+
+> Canonical is not planning to support in-place upgrades for major version change. The new MySQL Router charm will have to be installed nearby, and the data will be copied from the old to the new installation. After announcing the next MySQL major version support, the appropriate documentation for data migration will be published.
+
+For instructions on carrying out **minor version upgrades**, see the following guides:
+* [Minor upgrade](/t/12238), e.g. MySQL Router 8.0.33 -> MySQL Router 8.0.34<br/>
+(including charm revision bump 99 -> 102).
+* [Minor rollback](/t/12239), e.g. MySQL Router 8.0.34 -> MySQL Router 8.0.33<br/>
+(including charm revision return 102 -> 99).

docs/how-to/h-upgrade-intro.md

@@ -47,21 +47,12 @@ This MySQL Router K8s charm is an official distribution of MySQL Router. It’s
 | 2 | h-monitor | [Monitor (COS)]() |
 | 3 | h-enable-monitoring | [Enable monitoring](/t/14101) |
 | 3 | h-enable-tracing | [Enable tracing](/t/14553) |
-| 2 | h-upgrade | [Upgrade]() |
-| 3 | h-upgrade-intro | [Intro](/t/12235) |
-| 3 | h-upgrade-major | [Major upgrade](/t/12236) |
-| 3 | h-rollback-major | [Major rollback](/t/12237) |
+| 2 | h-upgrade | [Upgrade](/t/12235) |
 | 3 | h-upgrade-minor | [Minor upgrade](/t/12238) |
 | 3 | h-rollback-minor | [Minor rollback](/t/12239) |
 | 2 | h-contribute | [Contribute](/t/14528) |
 | 1 | reference | [Reference]() |
-| 2 | r-releases-group | [Release Notes](/t/12201) |
-| 3 | r-releases-rev531 | [Revision 530/531](/t/16134) |
-| 3 | r-releases-rev155 | [Revision 154/155](/t/15354) |
-| 3 | r-releases-rev117 | [Revision 117](/t/14074) |
-| 3 | r-releases-rev96 | [Revision 96](/t/13523) |
-| 3 | r-releases-rev82 | [Revision 82](/t/12796) |
-| 3 | r-releases-rev69 | [Revision 69](/t/12202) |
+| 2 | r-releases | [Releases](/t/12201) |
 | 2 | r-system-requirements | [System requirements](/t/12179) |
 | 2 | r-testing | [Testing](/t/12234) |
 | 2 | r-contacts | [Contacts](/t/12177) |
@@ -72,7 +63,17 @@ This MySQL Router K8s charm is an official distribution of MySQL Router. It’s
 
 [/details]
 
+<!-- Arhived
+| 3 | h-upgrade-major | [Major upgrade](/t/12236) |
+| 3 | h-rollback-major | [Major rollback](/t/12237) |
 
+| 3 | r-releases-rev531 | [Revision 530/531](/t/16134) |
+| 3 | r-releases-rev155 | [Revision 154/155](/t/15354) |
+| 3 | r-releases-rev117 | [Revision 117](/t/14074) |
+| 3 | r-releases-rev96 | [Revision 96](/t/13523) |
+| 3 | r-releases-rev82 | [Revision 82](/t/12796) |
+| 3 | r-releases-rev69 | [Revision 69](/t/12202) |
+-->
 # Redirects
 
 [details=Mapping table]