Update startup.py

removed single line comments and added multiline comments which makes code more readable.

startup.py

@@ -1,10 +1,12 @@
-# In this sample, the Flask app object is contained within the hello_app *module*;
-# that is, hello_app contains an __init__.py along with relative imports. Because
-# of this structure, a file like webapp.py cannot be run directly as the startup
-# file through Gunicorn; the result is "Attempted relative import in non-package".
-#
-# The solution is to provide a simple alternate startup file, like this present
-# startup.py, that just imports the app object. You can then just specify
-# startup:app in the Gunicorn command.
+""" 
+In this sample, the Flask app object is contained within the hello_app *module*;
+that is, hello_app contains an __init__.py along with relative imports. Because
+of this structure, a file like webapp.py cannot be run directly as the startup
+file through Gunicorn; the result is "Attempted relative import in non-package".
+
+The solution is to provide a simple alternate startup file, like this present
+startup.py, that just imports the app object. You can then just specify
+startup:app in the Gunicorn command.
+"""
 
 from hello_app.webapp import app