Adding a Branching section to the README to detail the branching structures availablein this repository.
Adding some simple content to file1.
Adding a new say_hello function to the hello.py module.
Adding some nice content to section2 of file2.
Merge branch 'extras'

Added some content to extras/file1.md.
Added some content to extras/file2.md.
Updating the Branching section of the README with the most recent branching structure added to this repo.
Adding a header to the file3 document.
Adding some documentation to the newest function.
Fixed the heading of the first section and added a new section.
Adding another section to file1.
Adding some nice code reuse.
Merge branch 'extra-fix' into extras
Merge branch 'extras'

Added sections to file1 and file2.
Fixed a section heading in file2.
Added an initial header to file3.
Adding more details to the branching section of the README.
Adding a file4.
Updating the comments in hello.py.
Adding some content to file3.
Making the say_hello function for versatile.
Adding a header to file4.
Adding another call to our fancier version of say_hello.