Update README.md
Update README.md
Update README.md
Merge pull request #50 from ccd-utexas/develop

quick patch
Update .gitignore
Update README.md
generated pdfs
fixed aperture
Merge branch 'fix_apertures' into develop
Merge branch 'develop'
hack to prevent runtime error
Merge branch 'except_runtimeerror' into develop
Merge branch 'develop'
Merge pull request #2 from ccd-utexas/master

update