Unquoted strings for readability

examples_src/layer-spy.html

@@ -1,7 +1,7 @@
 ---
-template: "example.html"
-title: "Layer Spy Example"
-shortdesc: "View a portion of one layer over another"
+template: example.html
+title: Layer Spy Example
+shortdesc: View a portion of one layer over another
 docs: >
   <p>Layer rendering can be manipulated in <code>precompose</code> and <code>postcompose</code> event listeners.
   These listeners get an event with a reference to the Canvas rendering context.