Communication and documentation following fix of Ledger identifier "v".

Following the fix of this bug https://github.com/MetaMask/eth-ledger-bridge-keyring/pull/134, developer communication and documentation needs to be released to ensure the dapps that are currently relying on the broken/old version are updated to support the new version.

Start by reading the linked eth-ledger-bridge-keyring pull request #134 and identify the developer communication and documentation affected by the Ledger identifier change. Done means publishing clear guidance so dapps relying on the old version know how to update and support the new version.

Written by the indexing model from the issue text.