minor fix in chain-info

Author: LandauRaz

modules/resources/pages/chain-info.adoc

@@ -48,7 +48,7 @@ This limit ensures block production times remains consistent and predictable.
 ====
 | Mainnet: 5 * 10^9^
 
-Sepolia: 4 * 10^9^ on 
+Sepolia: 4 * 10^9^ 
 
 | Max L2 gas per transaction
 a| The maximum number of computational steps, measured in L2 gas, that a transaction can contain when processed on the Starknet network