Add showcase

Author: amay077

README.md

@@ -153,6 +153,21 @@ This is just a short list of apps and projects that use Xamarin.Forms.GoogleMaps
       <p>&nbsp;</p>
     </td>
   </tr>
+  <tr>
+    <td align="center">
+      <h3><a target="_blank" href="https://itunes.apple.com/us/app/transantiagomaster/id541341697?mt=8">TransantiagoMaster</a></h3>
+      <img src="https://user-images.githubusercontent.com/1848210/47026824-b3d31c00-d13c-11e8-926a-d7e68403e856.png" width="200" width="200" style="max-width:100%;">
+    </td>
+    <td align="center">
+      <h3><a target="_blank" href="https://play.google.com/store/apps/details?id=jp.co.Shin_yosha.NowStation">NowStation</a></h3>
+      <img src="https://user-images.githubusercontent.com/40679902/52461171-30d54600-2bb1-11e9-9568-36d4f3826815.png" width="200" width="200" style="max-width:100%;">
+      <p>by <a target="_blank" href="http://www.shin-yosha.co.jp/">SHIN-YOSHA corp.</a></p>
+    </td>
+    <td align="center">
+    </td>
+    <td align="center">
+    </td>
+  </tr>
 </table>
 
 ## Releases