Update website/pages/en/subgraphs/explorer.mdx

Co-authored-by: Benoît Rouleau <[email protected]>

Author: idalithb

website/pages/en/subgraphs/explorer.mdx

@@ -44,7 +44,7 @@ On each subgraph’s dedicated page, you can do the following:
 
 ![Explorer Image 3](/img/Explorer-Signal-Unsignal.png)
 
-### Delegate Tab
+### Delegate Page
 
 Under the [delegate tab](https://thegraph.com/explorer/delegate?chain=arbitrum-one), you can find information about delegating, acquiring GRT, and choosing an Indexer.