added link to questions on home page (publiclab#2222)

* added link to questions on home page

closes publiclab#2188

* minor changes

* Update home.html.erb

app/views/home/home.html.erb

@@ -37,6 +37,17 @@
   <a href="https://instagram.com/publiclab"><i style="text-decoration:none;" class="fa fa-instagram"></i></a>
 </h3>
 
+<br />
+<hr />
+<br />
+
+<div class="row text-center">
+  <h1>Ask a question</h1>
+  <p>The easiest way to start with Public Lab community is to ask a question.<br />See questions and ask your own here:</p>
+  <a class="btn btn-primary btn-lg" href="/questions">Questions &raquo;</a>
+</div>
+
+<br />
 <br />
 
 <div class="row">
@@ -50,8 +61,6 @@
 <br />
 <br />
 
-
-
 <style>
   h1, h2, h3, h4 {
     font-family:Junction Light;
@@ -83,6 +92,7 @@
   .activity-dropdown {
     display: none;
   }
+
 </style>
 
 <div id="bottom">