Add placeholder link for more info

index.html

@@ -20,7 +20,7 @@
           <img class="bitcoin-logo" src="node_modules/cryptocurrency-icons/svg/color/btc.svg" alt="btc">
           <span class="arm">💪</span>
         </div>
-        <h1>How many confirmations are equivalent to 6 Bitcoin confirmations?</h1>
+        <h1>How many confirmations are equivalent<sup><a rel="noopener noreferrer" target="_blank" href="//github.com/lukechilds/howmanyconfs.com">*</a></sup> to 6 Bitcoin confirmations?</h1>
       </div>
     </header>
     <section class="wrapper">