Adding SCREENSHOT.png

Signed-off-by: shyeon.kim <shyeon.kim@scipi.net>
Fixing README.md

Signed-off-by: shyeon.kim <shyeon.kim@scipi.net>
Fixing URL in README.md

Signed-off-by: shyeon.kim <shyeon.kim@scipi.net>
Fixing again

Signed-off-by: shyeon.kim <shyeon.kim@scipi.net>
Merge branch 'release/v0.1.2'