PACKAGING.md: Major rewrite

PACKAGING.md

-# Archlinux
+# Distributions with readily available packages
+
+## Archlinux
 
 AUR does not require any packaging information within this repository.
 
-# Debian
+## Debian
 
 Debian packages are provided by the author in separate branches, maintained in
 the upstream repository
 
-## Ubuntu
+### Ubuntu
 
 Ubuntu imports Debian's package automagically.
 
 
-# Mac OS X
+## Mac OS X / Homebrew
 
 Homebrew does not require any packaging information within this repository.
 A separate branch with a statically compiled manpage and release tags is
-provided to ease packaging. The static manpage because Homebrew lacks ronn;
-the tag so github generates tarballs Homebrew can be pointed at.
-
+provided to ease the work of Homebrew packagers:
 
-# Additional notes
+* The static manpage because Homebrew lacks ronn
+* The tag so GitHub generates tarballs Homebrew can be pointed at
 
-## Static manpage
 
-In case you can not build the manpage because you are missing ronn please
-contact the author. The "debian-squeeze" branch carries a quilt patchset with
-a pre-compiled manpage and the "homebrew" one carries a static manpage. If you
-need, or want, to build your packages against a static version in your own
-branch this can be done.
+# Supporting new distributions
 
-## Other systems
+## Your own work
 
 If you are maintaining a package for a different distribution, please get
-in touch so your work can be included in another branch, thus allowing others
-to adapt it to their needs or to improve upon it.
+in touch so your work can be included in a packaging branch in the upstream
+repository.
+This allows others to adapt your work for their own distributions or
+packaging needs.
+
+## Static manpage
+
+The "debian-squeeze" branch carries a quilt patchset with a pre-compiled
+manpage and the "homebrew" one carries a static manpage.
+
+In case you can not build the manpage because you are missing ronn or you
+prefer a precompiled manpage for another reason, please contact us; we will
+gladly provide up-to-date packages with every release.