Revert "readme追加"

This reverts commit 54a668f0c4fa72feea96decd1984361bae332ce7.
Revert "Merge pull request #4 from hrnkj/hrnkj-02"

This reverts commit da2d6dc2cc5b7c3e516b0cd31e46cf21603c983b, reversing
changes made to 2c6cc4226ec3c145a047fd52fb0a233678c5055f.
Revert "Merge pull request #3 from hrnkj/hrnkj"

This reverts commit 2c6cc4226ec3c145a047fd52fb0a233678c5055f, reversing
changes made to 3c7dde050a493a938cd23370bb004386581424e4.