Added project 6. Diverse minor updates on other projects.

Pull Request Checklist

Story title: Keep it rolling -- Where did all these players go?

My pitch issue is (use the number): #250

My story issue is (use the number): #280

[x] My pitch issue checklist is complete
[x] My story issue checklist is complete
Directory Format
[x] There is a folder in /projects/ that is my full name
[x] Inside of that folder I have another folder just for this project
Visualization
[x] My visualization has a title on it
[x] I have cited by data source on the visualization
[x] My visualization has my name/web site/twitter handle on it (only needs one)
[x] I have exported my visualization as a png file
STORY.md
[x] I have included a STORY.md
[x] I have included a front matter section with the a title and summary
[x] I have properly linked my image, with a format like ![](image.png)
[x] If necessary, I have written text and such
Other files to include
[x] README.md, linking to my data set (if possible) and giving a brief overview of how I accomplished my task
[x] DIARY.md, the notes you were keeping for yourself while working on the projects (problems, solutions)
[x] Any IPython/Jupyter Notebook files
[x] Any PDF files you exported along the way
[x] Any images or other files from your process