Update README.md

Author: Kidel

README.md

@@ -6,7 +6,7 @@ It is also possible to export and import the form configuration for future chang
 
 Now supports network topology preview (requires a modern browser).
 
-* [Demo](http://bytearound.com/jobs/nlg/) (may not always be up to date).
+* [Demo](http://bytearound.com/jobs/nlg/) (may not always be up to date)
 * [Example configuration](https://raw.githubusercontent.com/Kidel/Netkit-Lab-Generator/master/examples/example_lab.config) (can be imported to generate the files or the graph)
 * [Screenshot (form)](https://raw.githubusercontent.com/Kidel/Netkit-Lab-Generator/master/images/screencapture-1460378558427.png)
 * [Screenshot (graph)](https://raw.githubusercontent.com/Kidel/Netkit-Lab-Generator/master/images/screencapture-1460378572119.png)