documentation/yocto-project-qs/yocto-project-qs.xml: Added CentOS distro

Reported-by: David Stewart <david.c.stewart@intel.com>
(From yocto-docs rev: 4df12f3437488f6d8dbfb54dd3de25f5636162c1)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/yocto-project-qs/yocto-project-qs.xml

@@ -144,7 +144,7 @@
     <itemizedlist>
         <listitem>
             <para>A host system running a supported Linux distribution (i.e. recent releases of
-                Fedora, openSUSE, Debian, and Ubuntu).
+                Fedora, openSUSE, CentOS, Debian, and Ubuntu).
                 If the host system supports multiple cores and threads, you can configure the 
                 Yocto Project build system to decrease the time needed to build images
                 significantly.
@@ -170,6 +170,7 @@
                 <listitem><para>Ubuntu</para></listitem>
                 <listitem><para>Fedora</para></listitem>
                 <listitem><para>openSUSE</para></listitem>
+                <listitem><para>CentOS</para></listitem>
             </itemizedlist>
             For a list of the distributions under validation and their status, see the
             <ulink url='&YOCTO_WIKI_URL;/wiki/Distribution_Support'>Distribution