Added info on NCC Group audit (#68)

* Added info on NCC Group audit

* Move NCC Group audit info, update previous stmt

README.md

@@ -34,7 +34,7 @@ See https://recrypt.rs
 
 ## Security and Audits
 
-The Scala version of recrypt has been [audited by NCC group](https://www.nccgroup.trust/us/our-research/proxy-re-encryption-protocol-ironcore-public-report/). This implementation was based on that version, but has not been independently audited and **should be used at your own risk.** 
+NCC Group has conducted an audit of this library - release [0.6.2](https://github.com/IronCoreLabs/recrypt-rs/releases/tag/0.6.2) contains all of the audited code, including updates that were created to resolve issues that were discovered during the audit. The NCC Group audit found that the chosen pairing and elliptic curve are cryptographically sound, and that the Rust implementation is a faithful and correct embodiment of the target protocol. In addition, the audit confirmed that the implementation does not leak secret information via timing or memory access pattern side-channel attacks.
 
 To learn more about our approach to cryptography and to read our publications, please [go here](https://docs.ironcorelabs.com/cryptography/).