Update learn/security.md

Co-authored-by: Erin Shaben <eshaben@icloud.com>

Author: ilariae

learn/security.md

@@ -61,7 +61,7 @@ Guardians are not just running Wormhole validators; they're running validators f
 Guardians monitor:
 
 - Block production and consensus of each blockchain - if a blockchain's consensus is violated, it will be disconnected from the network until the Guardians resolve the issue
-- Smart Contract level data - via processes like the Governor, Guardians constantly monitor the circulating supply and token movements across all supported blockchains
+- Smart contract level data - via processes like the Governor, Guardians constantly monitor the circulating supply and token movements across all supported blockchains
 - Guardian Level activity - the Guardian Network functions as an autonomous decentralized computing network, complete with its blockchain (**[Gateway](#){target=\_blank}**)
 
 ## Gateway & Asset Layer Protections