branch master updated (c776223 -> bf9eacd)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  c776223   Revert "gnu: expat: Replace with 2.1.1 [fixes 
CVE-2015-1283]."
       new  6f77360   doc: Rephrase introduction to give a better overview.
       new  bf9eacd   doc: Mention 'guix challenge' in "Features".

The 2 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 doc/guix.texi |   77 +++++++++++++++++++++++++++++++++++++-------------------
 1 files changed, 51 insertions(+), 26 deletions(-)