Changelog update

Author: courtneyeh

Diff for: CHANGELOG.md

@@ -14,6 +14,6 @@ the [releases page](https://github.com/Consensys/teku/releases).
 ### Additions and Improvements
 - Introduced [Validator Slashing Prevention feature](https://docs.teku.consensys.io/how-to/prevent-slashing/detect-slashing).
 - If the EL supports the `engine_getClientVersionV1` Engine API method, the default graffiti (when no graffiti has been configured by the validator) will include EL as well as CL version information. For more details, please see https://github.com/ethereum/execution-apis/pull/517.
-- `—p2p-private-key-file` command line option supports a binary private key file.
+- `—p2p-private-key-file` command line option supports reading a binary private key file.
 
 ### Bug Fixes