[install-guide/F21-rewrite] Missing word in troubleshooting

[pbokoc]

commit 1f4926b6642a732191b24e6d875b6347ef22a77c
Author: Petr Bokoc <pbokoc at redhat.com>
Date:   Sun Sep 7 21:24:50 2014 +0200

    Missing word in troubleshooting

 en-US/Troubleshooting.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/en-US/Troubleshooting.xml b/en-US/Troubleshooting.xml
index 555a28e..0bdc31f 100644
--- a/en-US/Troubleshooting.xml
+++ b/en-US/Troubleshooting.xml
@@ -638,7 +638,7 @@ tmpfs                                       1.8G  2.6M  1.8G   1% /tmp
             </para>
             <note>
                 <para>
-                    If you have 4GB or more memory installed, but &PRODUCT; only shows around 3.5GB or 3.7GB, you have probably installed a 32-bit version of &PRODUCT; on a 64bit kernel. For modern systems, the 64-bit (x86_64) version.
+                    If you have 4GB or more memory installed, but &PRODUCT; only shows around 3.5GB or 3.7GB, you have probably installed a 32-bit version of &PRODUCT; on a 64bit kernel. For modern systems, use the 64-bit (x86_64) version.
                 </para>
                 <para>
                     Some hardware configurations have a part of the system's RAM reserved and unavailable to the main system. Notably, laptop computers with integrated graphics cards will reserve some memory for the GPU. For example, a laptop with 4&nbsp;GB of RAM and an integrated Intel graphics card will show only roughly 3.7&nbsp;GB of available memory, even with a 64-bit system.