add feed link to app.html

static/style.css

@@ -74,10 +74,6 @@ p {
     margin-bottom: 1rem;
 }
 
-/*ul, ol {
-    margin: 0.5rem 0;
-}*/
-
 code {
   background: #eee;
   border-radius: 0.2rem;
@@ -89,5 +85,3 @@ code {
 pre > code {
     font-size: 0.8rem;
 }
-
-/* TESTING */