chore: remove repeat word (#716)

Signed-off-by: dashangcun <[email protected]>
Co-authored-by: dashangcun <[email protected]>

Author: dashangcun

website/pages/en/publishing/publishing-a-subgraph.mdx

@@ -38,7 +38,7 @@ Indexers can find subgraphs to index based on curation signals they see in Graph
 
 ![Explorer subgraphs](/img/explorer-subgraphs.png)
 
-Subgraph Studio enables you to to add signal to your subgraph by adding GRT to your subgraph's curation pool in the same transaction it is published.
+Subgraph Studio enables you to add signal to your subgraph by adding GRT to your subgraph's curation pool in the same transaction it is published.
 
 ![Curation Pool](/img/curate-own-subgraph-tx.png)