update and clarify migration example

MIGRATION.md

@@ -13,14 +13,19 @@ squid-js v2.0.0 only works against:
 - Events Handler v0.4.4+
 - Keeper Contracts v0.13.2+
 
-### Service index removal from `ocean.assets.order` & `ocean.assets.consume`
+### Service index parameter removal from `ocean.assets` methods
+
+Removes the need to get the respective service from the DDO, the `ocean.assets` methods will now do this on their own automatically.
 
 ```js
 // old
+const service = ddo.findServiceByType('access')
+const did = ddo.id
 const agreementId = await ocean.assets.order(did, service.index, account)
 const path = await ocean.assets.consume(agreementId, did, service.index, account, folder)
 
 // NEW
+const did = ddo.id
 const agreementId = await ocean.assets.order(did, account)
 const path = await ocean.assets.consume(agreementId, did, account, folder)
 ```

library.json

@@ -19,7 +19,7 @@
     },
     {
       "name": "events-handler",
-      "version": "~0.4.1"
+      "version": "~0.4.4"
     }
   ]
 }