Markdown to html, generate page to awesome-go.com (#1127)

* initial version html generate
After being made to change the master generate html based on markdown,
ref #363

* change package name, repo to main

* up port 80 on caddy server

* install mux on travis build

* generate sitemap

* added robots.txt

* set metatags on html page

* update repo via exec
get the most current readme

* remove unnecessary lowdash assign

* fix linter errors, remove unnecessary conversion, add binary to .gitignore

* fix fonts, use domain-level assets