Installation guide updates/fixing link to installations

[MYousuf3]

No description provided.

[kjohnsen]

(copied from Slack)

About your PR with updated install instructions---looks like you edited the built docs (Hugo-generated HTML) directly. We should be editing the Markdown source in misc/docs-hugo instead and then generating the docs from that. Can you do that instead? In addition, can you do the following?

• make sure we didn't make the mistake of editing HTML instead of the source Markdown on the last few changes to the docs
• both these should run if you cd scripts and update-docs.sh. you'll need Hugo (maybe a specific version) and Doxygen
  • regenerate the doxygen API docs (in case there are any new things, though I don't think we've touched the C++ doc comments)
  • regenerate the Hugo docs
• put instructions somewhere (maybe in README.md? the contributing page?) about editing/generating docs so we don't miss this again
• add a short section, maybe a paragraph or two, to the control-estimation page about MPC? You'll probably want to look at lqmpc for inspiration, but I wouldn't get into all the detail of how the quadratic program is set up. Just the main idea, the cost function over the horizon, etc.