Revert "A few more comments on what to do"

This reverts commit e4eed4153bd237a2dd4532fc3f40ce0e22fd0cb7.
my solution

this file contains two functions:
## the first function creates a litst contatining a function to:
## set the matrix entries, get them, set the inverse of a matrix, and
get the it

## the second function returns the inverse of a matrix that was created
using the first function
## if the inverse was calculated in prior to the call, it returns the
cached inverted matrix
## if not, it calculates it and sets it in the cache