WD-11677 - docs: add JIMM setup

[huwshimi]

Done

• Add instructions for setting up the latest JIMM

QA

• Follow the new docs instructions to set up JIMM. Note: when you get linked to the JIMM docs you should refer to the changes in this PR: https://github.com/canonical/jimm/pull/1224.

Details

https://warthogs.atlassian.net/browse/WD-11677

[webteam-app]

Demo

Jenkins

demos.haus

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 96.93%. Comparing base (1a26374) to head (27a1f91).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1764 +/- ## ======================================= Coverage 96.93% 96.93% ======================================= Files 411 411 Lines 23067 23067 Branches 2922 2922 ======================================= Hits 22360 22360 Misses 707 707 ```

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[huwshimi]

@vladimir-cucu I've added instructions for the 443 port forward. Can you check those instructions work for you?

[vladimir-cucu]

@vladimir-cucu I've added instructions for the 443 port forward. Can you check those instructions work for you?

Tested it just now. Works well and the permission error is no longer present. Thanks for the fix!