Fixed the document about YAESS multi-dispatch (#142, #153).
Fixed the document about YAESS multi-dispatch (#142, #153).

ashigeru/asakusafw,akirakw/asakusafw,ashigeru/asakusafw,akirakw/asakusafw,asakusafw/asakusafw,cocoatomo/asakusafw,cocoatomo/asakusafw,asakusafw/asakusafw