a backup after the first assignment
updated README.md file
Added some files in preparation for Assignment 2:

	new file:   a2.html
		    A stem for Assignment 2. Questions have been uploaded.

	new file:   a2_database_query_response.html
		    A page for Question 2 of Assignment 2.

	modified:   assignment_list.html
		    Insterted a link to a2.html.

	new file:   template_one-column_no_sidebar.html
		    Create an one-column no sidebar page for further usage.
fix some typos
Add a2_direct_marketing.html and fix some typos

	new file:   a2_direct_marketing.html
		    Article: Direct Marketing for Question 4.
Add a2_google_vs_amazon.html and fix some typos

	new file:   a2_google_vs_amazon.html
		    Article: Google vs. Amazon
Add a2_culturomics_search_for_historical_and_cultural_trends.html and change the title structure

	new file:   a2_culturomics_search_for_historical_and_cultural_trends.html
		    Article: Culturomics: Search for historical and cultural trends
Fix some typos
An update to our Assignment 2
Fix some typos and delete unnecessary files
Add an article mentioned in Question 12 of Assignment 2
Post answer to Question 4, 8, and 12 of Assignment 2
Add answer to Question 13 and 14 of Assignment 2
Update part d. of Question 4 in Assignment 2 again
Add answer to Question 10 of Assignment 2
Add answer to Question 7 in Assignment 2
Finish some proof readings
Remove proof reading remarks
Fix typos in part b of Answer 9 in Assignment 2
A push after Assignment 2 was graded