Unquoted strings for readability

examples_src/tile-load-events.html

@@ -1,7 +1,7 @@
 ---
-template: "example.html"
-title: "Tile load events example"
-shortdesc: "Example using tile load events."
+template: example.html
+title: Tile load events example
+shortdesc: Example using tile load events.
 docs: >
   Image tile sources fire events related to tile loading.  You can
   listen for <code>tileloadstart</code>, <code>tileloadend</code>,
@@ -16,4 +16,4 @@ tags: "tile, events, loading"
     <div id="map" class="map"></div>
     <div id="progress"></div>
   </div>
-</div>
+</div>