add link to html site

README.md

 
 There are long versions of each of these that begin with two dashes (`--kobolds`, `--names`, `--campaign`, `--ship`, `--params`, and `--help`) if you prefer.
 
-Finally, you can change the output from plain text to HTML with the `--html` flag. This can be used alongside any of the previous flags.
+Finally, you can change the output from plain text to HTML with the `--html` flag. This can be used alongside any of the previous flags.
+
+You can see the full campaign mode in action [here](http://node.noelle.codes/kobold)!