Update op-node/cmd/batch_decoder/README.md

op-node/cmd/batch_decoder/README.md

@@ -37,7 +37,7 @@ If the batch is a singular batch, `batch_decoder` does not derive and stores the
 the batch inbox address which will force close the given channels. This will allow future channels to
 be read without waiting for the channel timeout. It uses the results from `batch_decoder fetch` to
 create the close transaction because the transaction it creates for a specific channel requires information
-about whether the channel has been closed or not. If it has been closed already but is missing specific frames
+about if the channel has been closed or not. If it has been closed already but is missing specific frames
 those frames need to be generated differently than simply closing the channel.