Migrate AutoOps docs from Opster

[wajihaparvez]

Description

Some AutoOps docs still live on the Opster site, which poses the following risks/problems:

• These pages are outdated and we're not actively monitoring them.
• Most of the information doesn't apply to our current AutoOps offering, eg. AutoOps installation.
• These pages compete with our current AutoOps docs in search results about AutoOps and it's not immediately clear which docs are the "correct" ones.

What needs to be done

• Investigate if the information on any of these pages is still relevant.
• Migrate relevant information to our current AutoOps docs.
• Sunset these pages on the Opster site/set up redirects as necessary.

Related tasks

• Enhance current AutoOps docs
  • Refresh screenshots (and remove where they are not significantly contributing to the user experience)
  • Check consistency with the current UI
  • Improve cross-linking and visibility of AutoOps in other docs
  • Apply style guide changes

[wajihaparvez]

@georgewallace FYI