[abc] add note about space between #= marker and key in grammar files. No space means the key won't be picked up by the grammar parser.
[abc] add note about space between #= marker and key in grammar files. No space means the key won't be picked up by the grammar parser.

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@23660 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot