Add checksum (for release)

[Rezn1r]

Why?

To provide the integrity of every file
Its simple as getting sha256sum

0565695b77108bc19d7e4823c67119c1c2ec797d931ee23435699a79bdfa67b2     file

[gz83]

thanks for your advice

[Rezn1r]

No problem! I requested for this since the AUR Package didn't have a checksum.