New notebooks
added first image notebook and started format guide
Merge branch 'master' of https://github.com/pelson/mpl_notebooks

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renamed notebooks
added .ipynb_checkpoints to .gitignore
Removing unnecessary files
More work on format guide
Finished basic format guidelines
Update notebook_format.md
Update notebook_format.md
First version of notebooks for examples of basic statistical plots
new
Update notebook_format.md
More Notebooks!
Merge pull request #2 from pelson/new

Added the pie chart example.
Added color related notebooks
Moved text in colormap notebook to markdown cell
Update notebook_format.md
Added pie chart example.
Text & Annotation Notebooks