added readme
removed file extension
init
solved problem 1
clean up formatting
solved problem 2
added stepped Fibonacci sequence solution instead of filtering.
added test for stepped Fibonacci sequence solution.
amended docstrings
amended docstrings
solved problem 3
don't bother testing even numbers for primality
fixed incorrect check for p = 2
fixed incorrect check for p = 2
added run-all function and script
added run-all function and script
solved problem 6
solved problem 7
solved problem 8
solved problem 8