Create README.md
Update README.md
Update README.md
Add usage sample from https://www.flickr.com/photos/odysseygate/15526825305
Update README.md
Add usage sample from https://www.flickr.com/photos/102049974@N02/15456456080/in/set-72157648987129222
Merge branch 'master' of https://github.com/mayuko-jpn/flag

Conflicts:
	README.md
Merge pull request #1 from mayuko-jpn/master

Create README.md