Very simple way to serve a local web server from a directory.
Used for dev. Do not use for prod.
```sh
Start default port at current dir: http://localhost:8080 at the current folder
webhere
Starts with custom port: http://localhost:8888
webhere -p 8888
Start at custom root dir
webhere -d /some/dir
Start with live mode
Will add <script src="/_webhere_live.js"></script>
at the end of all html file)
A web-socket server is always on at /webherelive_ws (which send events when root dir file changes)
webhere -l
```