message: doc: useRequest doc add refreshDeps
diff: @@ -75,6 +75,18 @@ Production-ready React Hooks library for manage asynchronous data.
  ### RefreshDeps
  +When some `state` changes, we need to re-execute the asynchronous request. Generally, we will write code like this:
  +
  +```jsx | pure
  +const [userId, setUserId] = useState('1');
  +const { data, run, loading } = useRequest(()=> getUserSchool(userId));
  +useEffect(() => {
  + run();
  +}, [userId]);
  +```
  +
  +`refreshDeps` is a syntactic sugar that makes it easier for you to implement the above functions. When `refreshDeps` changes, the service will be re-executed using the previous params.
  +
  <code src="./demo/demo12.tsx" />
  ## Basic API
  