Update community-resources.html (#103)

Author: jeffkala

_includes/community-resources.html

@@ -31,6 +31,9 @@ <h5 class="mt-0">
                     <h5 class="mt-0">
                         | <a href="http://blog.networktocode.com/post/batfish-development-part2/">Developing Batfish - Extending a Grammar (Part 2)</a>
                     </h5>
+                    <h5 class="mt-0">
+                        | <a href="http://blog.networktocode.com/post/batfish-development-part3/">Developing Batfish - Converting Config Text into Structured Data (Part 3)</a>
+                    </h5>
                     <p>Jeff Kala (NetworkToCode, @jeffkala)</p>
                 </div>