add JS Air and PermisPts to showcase

Summary:
Add My 2 React Native Applications to showcase:

- JS Air
 - iOS and android
 - [javascriptair podcast](https://javascriptair.com) related
 - [open source](https://github.com/MacKentoch/jsair-mobile)
- PermisPts
  - iOS only but working on Android version
  - french driving license related
Closes https://github.com/facebook/react-native/pull/8034

Differential Revision: D3412970

fbshipit-source-id: 4f92f4ab369a297f0d48adca28c199ecb9f6c1a6

website/src/react-native/showcase.js

@@ -541,6 +541,13 @@ var apps = [
     link: 'https://itunes.apple.com/us/app/jukebox-offline-music-player/id1072583255?ls=1&mt=8',
     author: 'The Beat Drop Inc'
   },
+  {
+    name: 'JS Air',
+    icon: 'http://a1.mzstatic.com/eu/r30/Purple60/v4/56/94/66/56946608-34ac-dd5a-622f-75ef0073a7cd/icon175x175.jpeg',
+    linkAppStore: 'https://itunes.apple.com/fr/app/js-air/id1112141070?mt=8',
+    linkPlayStore: 'https://play.google.com/store/apps/details?id=com.jsair',
+    author: 'Erwan DATIN',
+  },
   {
     name: 'Kakapo',
     icon: 'http://a2.mzstatic.com/eu/r30/Purple3/v4/12/ab/2a/12ab2a01-3a3c-9482-b8df-ab38ad281165/icon175x175.png',
@@ -704,6 +711,12 @@ var apps = [
     linkPlayStore: 'https://play.google.com/store/apps/details?id=com.passpointsreactnative',
     author: 'passpoints.de',
   },
+  {
+    name: 'PermisPts',
+    icon: 'http://a3.mzstatic.com/eu/r30/Purple20/v4/02/62/ee/0262eef2-170e-4ca2-8f8a-8079482a393b/icon175x175.png',
+    link: 'https://itunes.apple.com/fr/app/permispts/id950595671?mt=8',
+    author: 'Erwan DATIN',
+  },
   {
     name: 'Pimmr',
     icon: 'http://a2.mzstatic.com/eu/r30/Purple69/v4/99/da/0e/99da0ee6-bc87-e1a6-1d95-7027c78f50e1/icon175x175.jpeg',