init commit

lib/here_i_am_web/controllers/page_html/home.html.heex

@@ -0,0 +1,12 @@
+<.flash_group flash={@flash} />
+
+<div class="container mx-auto text-center py-10">
+  <article class="prose mx-auto px-4">
+    <p>
+      This site allows you to set an MP3 to play when your device connects to the network.
+    </p>
+    <a href="/devices">
+      <button class="btn btn-primary mt-5">Manage Devices</button>
+    </a>
+  </article>
+</div>