Add link to misleading graph article in wikipedia

_episodes/03-plotting.md

@@ -30,7 +30,7 @@ can summarize an entire work of several pages in a few square centimeters.
 
 > *Where there is great power there is great responsibility* - Winston Churchill
 
-As much as an image can be used for information, it can be used for misinformation.
+As much as an image can be used for information, it [can be used for misinformation][wikipedia-misleading].
 Automatic behavior, formatting mistakes or deliberate manipulation,
 can lead to misleading messages by displaying data in erroneous or unclear ways.
 

_includes/links.md

@@ -170,6 +170,7 @@
 [w3c-py-classes]: https://www.w3schools.com/python/python_classes.asp
 [walrus]: https://www.geeksforgeeks.org/walrus-operator-in-python-3-8/
 [wikipedia-latex]: https://en.wikipedia.org/wiki/LaTeX
+[wikipedia-misleading]: https://en.wikipedia.org/wiki/Misleading_graph
 [wikipedia-pdf]: https://en.wikipedia.org/wiki/PDF
 [wikipedia-png]: https://en.wikipedia.org/wiki/Portable_Network_Graphics
 [wikipedia-raster]: https://en.wikipedia.org/wiki/Raster_graphics