Added "how to contribute to Django" document
Added "how to contribute to Django" document

git-svn-id: http://code.djangoproject.com/svn/django/trunk@1480 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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extra : convert_revision : 2284524de0256d32394022e2032e76491eaa041a

adieu/django-nonrel,adieu/django-nonrel,heracek/django-nonrel,adieu/django-nonrel,heracek/django-nonrel,heracek/django-nonrel