commands: use field lists instead of literal blocks in docstrings
The literal blocks were mis-used for alignment, but this of course
changes the font of the entire block to a fixed width font in the HTML
version. Using a proper list solves this.
Basic install:
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
See http://mercurial.selenic.com/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.