Update prdoc/pr_6689.prdoc

prdoc/pr_6689.prdoc

@@ -3,7 +3,7 @@ doc:
 - audience: Runtime Dev
   description: |-
     Update the current approach to attach the `ref_time`, `pov` and `deposit` parameters to an Ethereum transaction.
-    Previously we will pass these 3 parameters along with the signed payload, and check that the fees resulting from `gas x gas_price` match the actual fees paid by the user for the extrinsic.
+Previously, these three parameters were passed along with the signed payload, and the fees resulting from gas × gas_price were checked to ensure they matched the actual fees paid by the user for the extrinsic
 
     This approach unfortunately can be attacked. A malicious actor could force such a transaction to fail by injecting low values for some of these extra parameters as they are not part of the signed payload.