Update crates/bitwarden-crypto/src/safe/README.md

Co-authored-by: Thomas Avery <[email protected]>

Author: quexten

crates/bitwarden-crypto/src/safe/README.md

@@ -4,7 +4,9 @@ The safe module provides high-level cryptographic tools for building secure prot
 
 ## Password-protected key envelope
 
-The password protected key envelope should be used, when the goal is to protect a symmetric key with
-a password, for example for locking a vault with a PIN/Password, for protecting exports with a
-password, etc. Internally, a KDF is used to protect against brute-forcing, but this is not exposed
-to the consumer. The consumer only provides a password and key.
+Use the password protected key envelope to protect a symmetric key with a password. Examples include:
+
+- locking a vault with a PIN/Password
+- protecting exports with a password
+
+Internally, the module uses a KDF to protect against brute-forcing, but it does not expose this to the consumer. The consumer only provides a password and key.