Update bilby-output.txt

docs/bilby-output.txt

@@ -95,3 +95,11 @@ done via::
    result.save_posterior_samples()
 
 which will generate a file :code:`outdir/label_posterior.txt`.
+
+
+Visualising the results  
+--------------------
+Bilby also provides some useful built-in plotting tools. Some examples on how
+to visualise results using these tools (and  how to extend them) are shown in
+one of the tutorials at `visualising_the_results.ipynb  <https://en.wikipedia.org/wiki/JSON>`_.
+