templatekw: add {path} keyword to host documentation
It's hidden since I'm not sure if filectx templates can be a thing. The plan
is to add {status}, {size}, etc., which are usable within {files % ...}
context.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US">
<head>
<link rel="icon" href="{staticurl|urlescape}hgicon.png" type="image/png" />
<meta name="robots" content="index, nofollow" />
<link rel="stylesheet" href="{staticurl|urlescape}style-paper.css" type="text/css" />
<script type="text/javascript" src="{staticurl|urlescape}mercurial.js"></script>