subject/verbs were off

Author: nathan-websculpt

website/src/pages/en/subgraphs/developing/creating/subgraph-manifest.mdx

@@ -218,7 +218,7 @@ filter:
 
 _The defined handler will be called once for every block which contains a call to the contract (data source) the handler is defined under._
 
-> **Note:** The `call` filter currently depends on the Parity tracing API. Certain networks, such as BNB chain and Arbitrum, does not support this API. If a Subgraph indexing one of these networks contain one or more block handlers with a `call` filter, it will not start syncing.
+> **Note:** The `call` filter currently depends on the Parity tracing API. Certain networks, such as BNB chain and Arbitrum, do not support this API. If a Subgraph indexing one of these networks contains one or more block handlers with a `call` filter, it will not start syncing.
 
 The absence of a filter for a block handler will ensure that the handler is called every block. A data source can only contain one block handler for each filter type.