Resolves bz69854 - Adds TLS1.3 to Table 4: Versions of the SSL protocol

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1932823 13f79535-47bb-0310-9956-ffa450edef68

Author: rbowen

docs/manual/ssl/ssl_intro.xml

@@ -415,6 +415,13 @@ establishing a protocol session.</p>
         <td>Update of TLS 1.1 deprecating MD5 as hash, and adding incompatibility
         to SSL so it will never negotiate the use of SSLv2.</td>
     </tr>
+    <tr><td>TLS v1.3</td>
+        <td>Internet Standard (from IETF) [<a href="#TLS13"
+        >TLS13</a>]</td>
+        <td>Major revision of TLS 1.2 removing legacy cryptography, mandating
+        perfect forward secrecy, and redesigning the handshake protocol for
+        improved security and performance.</td>
+    </tr>
     </table>
 </section>
 
@@ -665,6 +672,11 @@ href="http://www.netscape.com/eng/ssl3/draft302.txt"
 <dd><q>The TLS Protocol Version 1.2</q>,
 2008. See <a href="http://tools.ietf.org/html/rfc5246"
 >http://tools.ietf.org/html/rfc5246</a>.</dd>
+
+<dt><a id="TLS13" name="TLS13">[TLS13]</a></dt>
+<dd><q>The Transport Layer Security (TLS) Protocol Version 1.3</q>,
+2018. See <a href="https://tools.ietf.org/html/rfc8446"
+>https://tools.ietf.org/html/rfc8446</a>.</dd>
 </dl>
 </section>
 <!-- /references -->