* keyring: update documentation * Update docs/run-node/keyring.md Co-authored-by: Barrie Byron <barrie.byron@tendermint.com> * Update docs/run-node/keyring.md Co-authored-by: Barrie Byron <barrie.byron@tendermint.com> Co-authored-by: Barrie Byron <barrie.byron@tendermint.com> Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>