Fix Kupyna links (#673)

Author: newpavlov

README.md

@@ -242,6 +242,7 @@ Unless you explicitly state otherwise, any contribution intentionally submitted
 [`groestl`]: ./groestl
 [`jh`]: ./jh
 [`k12`]: ./k12
+[`kupyna`]: ./kupyna
 [`md2`]: ./md2
 [`md4`]: ./md4
 [`md5`]: ./md5
@@ -284,6 +285,7 @@ Unless you explicitly state otherwise, any contribution intentionally submitted
 [Grøstl]: https://en.wikipedia.org/wiki/Grøstl
 [JH]: https://www3.ntu.edu.sg/home/wuhj/research/jh
 [KangarooTwelve]: https://keccak.team/kangarootwelve.html
+[Kupyna]: https://eprint.iacr.org/2015/885.pdf
 [MD2]: https://en.wikipedia.org/wiki/MD2_(cryptography)
 [MD4]: https://en.wikipedia.org/wiki/MD4
 [MD5]: https://en.wikipedia.org/wiki/MD5

kupyna/README.md

@@ -45,10 +45,16 @@ dual licensed as above, without any additional terms or conditions.
 
 [//]: # (badges)
 
+[crate-image]: https://img.shields.io/crates/v/kupyna.svg
+[crate-link]: https://crates.io/crates/kupyna
+[docs-image]: https://docs.rs/kupyna/badge.svg
+[docs-link]: https://docs.rs/kupyna/
 [license-image]: https://img.shields.io/badge/license-Apache2.0/MIT-blue.svg
 [rustc-image]: https://img.shields.io/badge/rustc-1.85+-blue.svg
 [chat-image]: https://img.shields.io/badge/zulip-join_chat-blue.svg
 [chat-link]: https://rustcrypto.zulipchat.com/#narrow/stream/260041-hashes
+[build-image]: https://github.com/RustCrypto/hashes/actions/workflows/kupyna.yml/badge.svg?branch=master
+[build-link]: https://github.com/RustCrypto/hashes/actions/workflows/kupyna.yml?query=branch:master
 
 [//]: # (general links)