notebook for demonstrating bokeh examples during the lecture. They are not my examples I just pulled them together from the bokeh documentation into a single notebook for easy demonstration. It is really just meant to be a bokeh taster. NOT a practical. I have explained that at the top of the notebook. However, thought the students might still like access to this for future reference, and we might build it out into a bokeh practical in the future. Let me know if you think it should be merged.