paper: fix rendering of the first tab in a line in Webkit (issue3990)
This fixes issue3990 for Webkit-browsers, and also older Opera versions.
Rendering in firefox is not changed.
Mercurial's documentation is kept in reStructuredText format, which is
a simple plain text format that's easy to read and edit:
http://docutils.sourceforge.net/rst.html
It's also convertible to a variety of other formats including standard
UNIX man page format and HTML. You'll need to install Docutils:
http://docutils.sourceforge.net/
Use the Makefile in this directory to generate the man and HTML pages.