Update sect-lightclient.md

Quick spelling fixes

docs/sect-lightclient.md

@@ -54,11 +54,11 @@ We list the requirements of a Light Client categorized along the three dimension
 
 Warp sync ([Section -sec-num-ref-](chap-networking#sect-msg-warp-sync)) only downloads the block headers where authority set changes occurred, so-called fragments ([Definition -def-num-ref-](chap-networking#defn-warp-sync-proof)), and by verifying the GRANDPA justifications ([Definition -def-num-ref-](sect-finality#defn-grandpa-justification)). This protocol allows nodes to arrive at the desired state much faster than fast sync. Warp sync is primarily designed for Light Clients. Although, warp sync could be used by full nodes, the sync process may lack information to cater to complete functionality set of full nodes.
 
-For light clients, it is too expensive to download the state (approx. 550MB) to respond to queries. Rather, the queries are submitted to the Full node and only the response of the full node is validated using the hash of the state root. Requests for warp sync are performed using the `/dot/sync/warp` *Request-Response* substream, the corresponding network messages are detailed in [Section -sec-num-ref-](chap-networking#sect-protocols-substreams).
+For light clients, it is too expensive to download the state (approx. 550MB) to respond to queries. Rather, the queries are submitted to the Full node, and only the response of the full node is validated using the hash of the state root. Requests for warp sync are performed using the `/dot/sync/warp` *Request-Response* substream, the corresponding network messages are detailed in [Section -sec-num-ref-](chap-networking#sect-protocols-substreams).
 
 Light clients base their trust in provided snapshots and the ability to slash grandpa votes for equivocation for the period they are syncing via warp sync. Full nodes and above, in contrast, verify each block individually.
 
-In theory, the `warp sync` process takes the Genesis Block as input and outputs the hash of the state trie root at the latest finalized block. This root hash acts as proof to further validate the responses to queries by the full node. The `warp sync` works by starting from a trusted specified block (e.g. from a snapshot) and verifying the block headers only at the authority set changes.
+In theory, the `warp sync` process takes the Genesis Block as input and outputs the hash of the state trie root at the latest finalized block. This root hash acts as proof to further validate the responses to queries by the full node. The `warp sync` works by starting from a trusted specified block (e.g., from a snapshot) and verifying the block headers only at the authority set changes.
 
 Eventually, the light client verifies the finality of the block returned by a full node to ensure that the block is indeed the latest finalized block. This entails two things: