yarn upgrade

works locally...

src/utils/sectionList.js

@@ -12,15 +12,19 @@ import navDocs from '../../content/docs/nav.yml';
 // $FlowExpectedError
 import navTutorial from '../../content/tutorial/nav.yml';
 
-const sectionListDocs = navDocs.map((item: Object): Object => ({
-  ...item,
-  directory: 'docs',
-}));
+const sectionListDocs = navDocs.map(
+  (item: Object): Object => ({
+    ...item,
+    directory: 'docs',
+  }),
+);
 
-const sectionListCommunity = navCommunity.map((item: Object): Object => ({
-  ...item,
-  directory: 'community',
-}));
+const sectionListCommunity = navCommunity.map(
+  (item: Object): Object => ({
+    ...item,
+    directory: 'community',
+  }),
+);
 
 export {
   sectionListCommunity,