Change 'Bah' to 'AAAH' in README.md

Just to have the same exclamation word in Philosophy paragraph.
	modified:   README.md
Correct some spelling errors in code comment & doc

I enabled spell-check module in my text editor. Now, I can detect
spelling errors easily. This commit contains only spelling errors
correction.
	modified:   README.md
	modified:   bin/diy
	modified:   bin/gridManagement.py
	modified:   bin/interpretor.py
	modified:   bin/parser.py
	modified:   doc/0.1.0/README.md
	modified:   doc/0.1.0/contribute.md
	modified:   doc/0.1.0/internal-workflow.md
	modified:   tests/unit-test/TestParser.py