Update number of tests, add comment

tests/Format/WFSCapabilities/v1.html

@@ -21,7 +21,7 @@
     }
     
     function test_read(t) {
-        t.plan(35);
+        t.plan(37);     // Number of tests performed: If you add a test below, be sure to increment this accordingly
        
         var parser = new OpenLayers.Format.WFSCapabilities();