[system-administrators-guide] Updates as per LBailey's review of httpd

[stephenw]

commit e49b09c4f5e4c1bb92e6604af300c1f8d3367b45
Author: Stephen Wadeley <swadeley at redhat.com>
Date:   Tue Dec 9 22:29:32 2014 +0100

    Updates as per LBailey's review of httpd

 en-US/Web_Servers.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/en-US/Web_Servers.xml b/en-US/Web_Servers.xml
index e9c5c3e..b5a47bd 100644
--- a/en-US/Web_Servers.xml
+++ b/en-US/Web_Servers.xml
@@ -12,7 +12,7 @@
     <see><application>Apache HTTP Server</application></see>
   </indexterm>
   <para>
-    <systemitem class="protocol">HTTP</systemitem> (Hypertext Transfer Protocol) server, or a <firstterm>web server</firstterm>, is a network service that serves content to a client over the web. This typically means web pages, but any other documents can be served as well.
+    A <firstterm>web server</firstterm> is a network service that serves content to a client over the web. This typically means web pages, but any other documents can be served as well. Web servers are also known as HTTP servers, as they use the <firstterm>hypertext transport protocol</firstterm> (<acronym>HTTP</acronym>).
   </para>
   <xi:include href="The_Apache_HTTP_Server.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
 </chapter>