Updated entry for "backward compatible"

Added entry for "backwards".

Author: Sam Ffrench

en-US/B.xml

@@ -67,13 +67,22 @@
 				</para>
 
 			</listitem>
+		</varlistentry>
+		 <varlistentry id="backwards">
+			<term>backwards</term>
+			 <listitem>
+				<para>
+					Avoid using "backwards" unless you are stating that something has "backwards compatibility."
+				</para>
+
+			</listitem>
 
 		</varlistentry>
 		 <varlistentry id="backwards-compatible">
 			<term>backwards compatible</term>
 			 <listitem>
 				<para>
-					Do not use. Instead, use "compatible with earlier versions." See also <xref linkend="forwards-compatible" />.
+					Correct. Use to refer to something that is compatible with older equipment or previous versions of software. See also <xref linkend="forwards-compatible" />.
 				</para>
 
 			</listitem>
@@ -419,4 +428,3 @@
 
 	</variablelist>
 </chapter>
-