git_practice/homework06/program-files/8 - Rename one program file

This is the "Rectangular Project". As you will see this may have 
been a bad choice of naming.

Step 8 renames a mis-spelled program rectanglar-solid.py to
rectangular-solid.py  using the git mv command. Note the name 
of the file in the directory and the git repo changes and is 
associated.


Ed