Resolves#4Resolves#5Resolves#6
Change list:
* Adds topics format
* Groups projects by their topics/tags, any without topics are tossed in `other`
* Adds minimal page for `go-get` or `git-import` URL query parameters
* Changes the version information to explicitly mention Vanity and Go.
* Adds manual update mode as an alternative to the automatic intervals.
* Moved templates to `.tmpl` files and using `//go:embed` to add to binary.
Co-authored-by: jolheiser <john.olheiser@gmail.com>
Reviewed-on: https://gitea.com/jolheiser/vanity/pulls/8
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
Co-committed-by: John Olheiser <john.olheiser@gmail.com>