Update chain-id

Author: Liver-23

grimoria-testnet-1/README.md

@@ -90,7 +90,7 @@ sided tx staking create-validator \
 --pubkey=$(sided tendermint show-validator)  \
 --moniker="side_node" \
 --security-contact="[email protected]" \
---chain-id="S2-testnet-1" \
+--chain-id="grimoria-testnet-1" \
 --commission-rate="0.1" \
 --commission-max-rate="0.2" \
 --commission-max-change-rate="0.05" \