feat: Update peer dependencies for react 17.x (#48)

Author: joaogardenberg

package.json

@@ -70,8 +70,8 @@
     "webpack": "1.13.2"
   },
   "peerDependencies": {
-    "react": "0.14.x || 15.x || 16.x",
-    "react-dom": "0.14.x || 15.x || 16.x"
+    "react": "0.14.x || 15.x || 16.x || 17.x",
+    "react-dom": "0.14.x || 15.x || 16.x || 17.x"
   },
   "dependencies": {
     "prop-types": "^15.5.7"