Add codec link. (#9)

Author: tomusdrw

src/index.html

@@ -105,9 +105,10 @@ <h3>trie visualiser<br/><small>(in progress)</small></h3>
                 </div>
                 <div class="item">
                     <div class="img"><img src="assets/images/icon5.png" alt=""></div>
-                    <h3>jam codec<br/><small>(planned)</small></h3>
+                    <h3>jam codec<br/><small>(in progress)</small></h3>
                     <p></p>
-                    <a href="#contact" class="scroll-down btn-transparent">contact</a>
+                    <a href="//github.com/fluffylabs/codec" class="btn-transparent">code</a>
+                    <a href="//codec.fluffylabs.dev" class="btn">demo</a>
                 </div>
                 <div class="item">
                     <div class="img"><img src="assets/images/icon6.png" alt=""></div>