add quoting to curl command

Author: tomkralidis

index.html

@@ -42,7 +42,7 @@
 
         # See that it works!
         curl http://localhost:8000  # OGC API - Records      
-        curl http://localhost:8000/csw?service=CSW&version=2.0.2&request=GetCapabilities  # CSW
+        curl "http://localhost:8000/csw?service=CSW&version=2.0.2&request=GetCapabilities"  # CSW
         {% endhighlight %}
     </div>
 </div>