Fixed a grammerior.

Author: daobrien

en-US/Design.xml

@@ -149,7 +149,7 @@
 				Refer to the <citetitle>Figures</citetitle> section in the <citetitle>IBM Style Guide</citetitle> for general advice about using figures, illustrations, and screen captures.
 			</para>
 			<para>
-				The following specific conventions apply to using captions and callouts with figures in Red&nbsp;Hat technical documentation, and is generally recommended.
+				The following specific conventions apply to using captions and callouts with figures in Red&nbsp;Hat technical documentation, and are generally recommended.
 			</para>
 			<itemizedlist>
 				<listitem>