Fix readme md syntax

README.md

@@ -368,7 +368,7 @@ const extrinsic = await session.createSubmitProofExtrinsic(api, proofType, param
 - `api`: An instance of the Polkadot API that provides the necessary methods for interacting with the blockchain.
 - `proofType`: ProofType enum - used to obtain the name of the pallet that contains the proof submission method.
 - `params`: A FormattedProofData object containing formatted proof parameters required for the extrinsic.
-Returns: A Promise that resolves to a SubmittableExtrinsic<'promise'>, allowing you to submit the proof to the blockchain.
+Returns: A Promise that resolves to a SubmittableExtrinsic`<'promise'>`, allowing you to submit the proof to the blockchain.
 
 ## `zkVerifySession.createExtrinsicHex`
 
@@ -389,7 +389,7 @@ const extrinsic = await session.createExtrinsicFromHex(api, extrinsicHex);
 
 - `api`: An instance of the Polkadot API used for creating the extrinsic.
 - `extrinsicHex`: A string representing the hex-encoded SubmittableExtrinsic to be reconstructed.
-Returns: A Promise that resolves to a SubmittableExtrinsic<'promise'>, allowing you to interact with the reconstructed extrinsic.
+Returns: A Promise that resolves to a SubmittableExtrinsic`<'promise'>`, allowing you to interact with the reconstructed extrinsic.
 
 ## `zkVerifySession.estimateCost`