add jonathan's examples to the repo
started editing grammar, updating code
Edit tutorial to use fits instead of pyfits

Edit tutorial to consistently use fits instead of pyfits with
appropriate warning about this choice. Keep discussion of extensions
but move to a later paragraph.
Merge pull request #3 from jfoster17/fits-header

Fits header
add UVES tutorial
Merge pull request #1 from adrn/fits-header

Add jonathan's examples to the repo
Fix typos as suggested in the discussion to the pull request
Merge pull request #5 from hamogu/UVES

add UVES tutorial
ignore ipynb checkpoints
start converting to ipy notebook, added fits data file
add another extension to FITS file, finish converting to notebook
remove old files
Update information in README file
convert to a notebook
remove old tutorial files
Merge pull request #25 from adrn/master

Move tutorials to iPython notebook files
Fix typos
remove empty command line
start input prompt numbers by 1
remove IOError message because of existing file