Converted files to reStructuredText.

Changes to be committed:
	deleted:    02-html-css.md
	deleted:    03-javascript.md
	renamed:    04-python.md -> 04-python.rst
	renamed:    05-django.md -> 05-django.rst
	renamed:    06-php.md -> 06-php.rst
	renamed:    07-mysql.md -> 07-mysql.rst
	renamed:    08-linux.md -> 08-linux.rst
	renamed:    09-git.md -> 09-git.rst
	renamed:    10-pycharm.md -> 10-pycharm.rst
	renamed:    11-webstorm.md -> 11-webstorm.rst
Convert content to reStructuredText

Changes to be committed:
	modified:   04-python.rst
	modified:   05-django.rst
	modified:   06-php.rst
	modified:   09-git.rst