Update readme

README.md

@@ -88,9 +88,9 @@ In progress:
 - [ring](https://crates.io/crates/ring) for encryption and [argon2](https://crates.io/crates/argon2) for key derivation
   function (generating key from password used to encrypt the master encryption key)
 - [rand_chacha](https://crates.io/crates/rand_chacha) for random generators
-- [secrecy](https://crates.io/crates/secrecy) for keeping pass and encryption keys safe in memory and zeroing them when
+- [shush-rs](https://crates.io/crates/shush-rs) for keeping pass and encryption keys safe in memory and zeroing them when
   not used. It keeps encryption keys in memory only while being used, and when not active it will release and zeroing
-  them in memory
+  them in memory. It locks memory page as well, preventing it from being written to swap.
 - [blake3](https://crates.io/crates/blake3) for hashing
 - password saved in OS keyring using [keyring](https://crates.io/crates/keyring)
 - [tracing](https://crates.io/crates/tracing) for logs