Update cli.rst

Information about Clint has been added.

Author: ugurthemaster

docs/scenarios/cli.rst

@@ -6,11 +6,14 @@ Command Line Applications
 Clint
 -----
 
-.. todo:: Write about Clint
+`clint <https://pypi.python.org/pypi/clint/>`_ is a python module which is 
+filled with very useful tools for developing commandline applications.
+It supports features such as; CLI Colors and Indents, Simple and Powerful
+Column Printer, Iterator based progress bar and Implicit argument handling.
 
 docopt
 ------
 
 `docopt <http://docopt.org/>`_ is a lightweight, highly Pythonic package that
 allows creating command line interfaces easily and intuitively, by parsing
-POSIX-style usage instructions.
+POSIX-style usage instructions.