feat(ticket rules): Add docs for ticket rules

[ceorourke]

Don't merge until feature is out!

Add documentation about the new ticket rules feature which allows users to set alert rules for when to automatically create Jira tickets and Azure DevOps work items.

I'm open to feedback on this - I was torn between adding this into the "Issue Management" section or creating it's own section, but ultimately it's 2 ways of accomplishing the same thing (creating a ticket) so I thought it made more sense to put them together. I'm also not married to adding it to the feature table.

Add it to the alert rule actions

Add it to the available features

Add it to the Jira integration page

Add it to the Azure DevOps integration page

[vercel]

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[github-actions]

This pull request has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you label it Status: Accepted, I will leave it alone ... forever!

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"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀