add Hello world
add gitignore
test
Merge pull request #1 from Tokyo-Git/dd

test
Revert "Merge pull request #1 from Tokyo-Git/dd"

This reverts commit 06256320d02ac04ef28a426ad634233731dc4f43, reversing
changes made to 1f0c98cdf03a0c91e9a9cedd69ff9c92fb142e42.
Revert "Revert ff78321..4055440"

This reverts commit 83abbb53b7f531f049d28945d19302cd50fe28e3.
commit
Merge pull request #2 from Tokyo-Git/A-1

A 1 merge