Add quick explanation of name in about

src/public/components/about.js

@@ -6,6 +6,9 @@ var About = React.createClass({
         return (
             <div>
                 <h2>About</h2>
+                <p className="bg-info text-info">
+                    <strong>DAVIDS</strong> stands for DuplicAtes VIewer and Detector for Spotify.
+                </p>
                 <p>
                     This application allows you to find duplicates in your Spotify playlists.
                     For the moment, it does not offer to remove them for you.

src/public/style.css

@@ -2,3 +2,8 @@
     height: 20px;
     margin-right: 10px;
 }
+
+.bg-info {
+    padding: 1em;
+    border-radius: 1ex;
+}