search covers only dynamic content

[peff]

We index the book and manpage content for the search feature, but not any of the static content. So searching for "trademark", for example, will not turn up the trademark page (nor will "downoad" find the download page, etc).

We probably could feed the static pages into the index, but I'm not sure of the details.

[pedrorijo91]

There are a few search related topics from a deprecated TODO file that should be considered when addressing this issue (https://github.com/git/git-scm.com/blob/2c4281d6bfd1fab54cf6f1c8a47318f3c49607f1/TODO.txt) :

• weighting
  • weigh porcelain over plumbing
  • weigh by total views
• add book content to search
• add video shownotes to search
• add stackoverflow to search
• search internal pages, too

Probably a few can be discarded (adding stackoverflow to search seems an overkill for instance), but let's reflect on them when implementing