[gnome-boxes] help: Suggest 5GB RAM and 20GB of free disk space

[Felipe Borges <felipeborges src gnome org>]

commit d74a7dd41c5357b9785985230d2086b6aaf0a960
Author: kerryc <kerryc riseup net>
Date:   Sun Mar 22 14:21:28 2015 -0700

    help: Suggest 5GB RAM and 20GB of free disk space
    
    Boxes can overheat a system with insufficient RAM.
    A suggestion of 4GB RAM and 20GB disk was added
    as a guideline to help avoid crashing.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=710301

 help/C/system-requirements.page |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/help/C/system-requirements.page b/help/C/system-requirements.page
index cbd575a..34d2e79 100644
--- a/help/C/system-requirements.page
+++ b/help/C/system-requirements.page
@@ -59,6 +59,11 @@
     <p><app>Boxes</app> performs best if your computer processor supports
     hardware <link xref="virtualization">virtualization extensions</link> and
     these are enabled in the system BIOS.</p>
-  </note>
+   </note>
+   <note style="advanced">
+    <p>It is also recommended that you have at least 8GB RAM and 20GB of free
+    disk space on your computer to efficiently run <app>Boxes</app>.</p>
+   </note>
+
 
 </page>