Formatted all pages according to guidelines.

pages/common/python.md

@@ -1,19 +1,19 @@
 # Python
 
-> Python language interpeter
+> Python language interpeter.
 
-- Call a Python interactive shell (REPL)
+- Call a Python interactive shell (REPL):
 
 `python`
 
-- Execute script in a given Python file
+- Execute script in a given Python file:
 
 `python {{script.py}}`
 
-- Execute Python language single command
+- Execute Python language single command:
 
 `python -c {{command}}`
 
-- Run library module as a script (terminates option list)
+- Run library module as a script (terminates option list):
 
 `python -m {{module}} {{arguments}}`