add home link

cmd/ingestd/web/index.html

@@ -14,7 +14,10 @@
     <header class="topbar">
       <div>
         <div class="title">Weatherstation Console</div>
-        <div class="subtitle" id="site-meta">Loading...</div>
+        <div class="subtitle" id="site-meta">
+          <a class="site-link" id="site-home" href="/">--</a>
+          <span id="site-meta-suffix"></span>
+        </div>
       </div>
       <div class="controls">
         <div class="segmented" role="group" aria-label="time range">