* Add steps to install Rancher Extensions in an air-gapped environment
* added link from install guide
* added notes to import/install steps as suggested by rohitsakala
* minor copyedits
* updating extensions explicitly given own section
* tightened up note
* updated note for v2.7
* ensuring all 3 versions have same text
* versioning install-rancher-ha
* del extension repos + (partially) upgrade
* fixed comment syntax
* Apply suggestions from code review
Co-authored-by: Billy Tat <btat@suse.com>
* Apply suggestions from code review
* completed update instructions
* no dropdown, text input
* more explanation + delete
* Apply suggestions from code review
* extensions repo container image delete
* versioning
* revert changes to v2.7
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Co-authored-by: Billy Tat <btat@suse.com>