Update README.md (#24)

* Update README.md

Fixed typo

* relayer key added

---------

Co-authored-by: Anshul Yadav <55681256+anshulforyou@users.noreply.github.com>

README.md

@@ -104,7 +104,7 @@ await aarcSDK.executeMigration({
     },
     ...
   ],
-  GELATO_RELAYER_API_KEY // Use the link above to get the gelato relayer key
+  gelatoApiKey: GELATO_RELAYER_API_KEY // Use the link above to get the gelato relayer key
 })
 // Returns the response given below
 ```
@@ -149,7 +149,7 @@ const newSafeAddress = await aarcSDK.generateSafeSCW(
 
 ### Biconomy Smart Wallet
 
-Fetching Existing Safes:
+Fetching Biconomy Smart Wallets:
 
 Retrieve a list of all Biconomy smart wallets associated with the user's EOA:
 ```typescript