Use a "Apache Commons Codec (TM) software provides" the first time Codec is mentioned.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1085248 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/site/xdoc/index.xml

@@ -24,7 +24,7 @@ limitations under the License.
 <!-- ================================================== -->
 <section name="Commons Codec">
 <p>
-Apache Commons Codec (TM) provides implementations of common encoders and decoders
+Apache Commons Codec (TM) software provides implementations of common encoders and decoders
 such as Base64, Hex, Phonetic and URLs.
 <!--ul>
 <li>Base64</li>