Started adding materials for doit lessons
First pipeline step: reformat the data
First doit task - download the temperature file.
Ignore doit database files
Use doit to download two data files
Keep scripts more organised, numbered by lesson order
Having the scripts in a subdirectory changed the doit working directory
Ignore data files
Going to use ipython magic for this lesson, so examples can go in a sub directory
Example for refactoring tasks
Added ipython magic for running doit
Stop printing the full command
Started writing the lesson notebook
Start off with the raw data present
Changing the order of tasks covered.
Start out with some old data, so we can show how to update it
Reordered parts of the lesson
Don't print a traceback when we pipe output to head
This is a quickly fix to missing plots

- Fix template
- Fix Makefile
Finished the lesson and moved things around