Update mapping example.
Add numpy dtype notes.
Update mpl lecture notes.
v3 of notebook
fixed links in README
added a little more
nicer pdf printing (wrapping code lines)
making pdf printing work nicely
Add intro to structure dtypes
Add readme file
Add missing stations file.
cleared out elaborate example and added to it
Add my notebooks.
updated some more ideas
some more potential ideas to show
initial version of the two notebooks
will clean them up tomorrow morning before lecture