fix notation; score with meld
Optional Agari-yame
whenever lending and borrowing
weeding
Merge pull request #6 from majiang/notation

fix notation; score with meld
Merge pull request #9 from majiang/lend-borrow

Call us whenever lending and borrowing
Merge pull request #10 from majiang/weeding

weeding
Merge pull request #8 from majiang/optional

Optional Agari-yame
Update mahjong.md