Update subgraphs.mdx

Author: idalithb

website/pages/en/subgraphs.mdx

@@ -6,7 +6,7 @@ title: Subgraphs
 
 A custom, open API that extracts data from a blockchain, processes it, and stores it so it can be easily queried via GraphQL.
 
-### Subgraphs Capabilities
+### Subgraph Capabilities
 
 - **Access Data:** Subgraphs enable the querying and indexing of blockchain data for web3.
 - **Build:** Developers can build, deploy, and publish subgraphs to The Graph Network. To get started, check out the subgraph developer [Quick Start](quick-start/).