Add entry about newly exposed method

packages/web3-wrapper/CHANGELOG.json

@@ -6,6 +6,10 @@
                 "note":
                     "Rename `getBlockAsync` to `getBlockIfExistsAsync` and rather then throw if the requested block wasn't found, return undefined.",
                 "pr": 1082
+            },
+            {
+                "note": "Expose `sendRawPayloadAsync` so one can easily extend `Web3Wrapper` with their own custom JSON RPC calls",
+                "pr": 1080
             }
         ]
     },