Version 3

Fix filename, script issues (#4)

* Fix filename for line length check and add copy to dockerfile

* Excludes `docs/images` from whitespace search

* Add a space in between echo and argument

Co-authored-by: rem1776 <[email protected]>

Version 2

Trailing whitespace ignores non-ascii files

Version 1

Runs two simple lint tests:

• Checking for trailing white space.
• Check Fortran file for the use of the tab character.