Update index.md

Author: ammar2050

src/content/community/research/index.md

@@ -80,8 +80,8 @@ Ethereum clients are implementations of the Ethereum protocol. Client developmen
 
 An Ethereum node is required to run two pieces of software:
 
-1. a consensus client to keep track of the head of the blockchain, gossip blocks and handle consensus logic
-2. an execution client to support the Ethereum Virtual Machine and execute transactions.
+1. a consensus client to keep track of the head of the blockchain, gossip blocks and to handle consensus logic.
+2. an execution client to support the Ethereum Virtual Machine and execute transactions and smart contracts.
 
 See the [nodes and clients page](/developers/docs/nodes-and-clients/) for more detail on nodes and clients and for a list of all current client implementations. You can also find a history of all Ethereum upgrades on the [history page](/history/).