update react in example code

Author: OlivierJM

example/package.json

@@ -17,11 +17,11 @@
     "@types/node": "link:../node_modules/@types/node",
     "@types/react": "link:../node_modules/@types/react",
     "@types/react-dom": "link:../node_modules/@types/react-dom",
-    "react": "link:../node_modules/react",
+    "react": "^17.0.1",
     "react-dom": "link:../node_modules/react-dom",
+    "react-dynamic-fields": "link:..",
     "react-scripts": "link:../node_modules/react-scripts",
-    "typescript": "link:../node_modules/typescript",
-    "react-dynamic-fields": "link:.."
+    "typescript": "link:../node_modules/typescript"
   },
   "devDependencies": {
     "@babel/plugin-syntax-object-rest-spread": "^7.8.3"

example/yarn.lock

@@ -8754,9 +8754,13 @@ react-is@^17.0.1:
   version "0.0.0"
   uid ""
 
-"react@link:../node_modules/react":
-  version "0.0.0"
-  uid ""
+react@^17.0.1:
+  version "17.0.1"
+  resolved "https://registry.yarnpkg.com/react/-/react-17.0.1.tgz#6e0600416bd57574e3f86d92edba3d9008726127"
+  integrity sha512-lG9c9UuMHdcAexXtigOZLX8exLWkW0Ku29qPRU8uhF2R9BN96dLCt0psvzPLlHc5OWkgymP3qwTRgbnw5BKx3w==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
 
 read-pkg-up@^2.0.0:
   version "2.0.0"