Update 01.shouldComponentUpdate-check.md

that if statement can be returned to a flat return

Author: Asymons

perf-tips/01.shouldComponentUpdate-check.md

@@ -37,13 +37,8 @@ const AutocompleteItem = (props) => {
 ```javascript
 export default class AutocompleteItem extends React.Component {
   shouldComponentUpdate(nextProps, nextState) {
-    if (
-      nextProps.url !== this.props.url ||
-      nextProps.selected !== this.props.selected
-    ) {
-      return true;
-    }
-    return false;
+    return nextProps.url !== this.props.url ||
+      nextProps.selected !== this.props.selected;
   }
 
   render() {