update app.json

Author: bg-stripe

Diff for: app.json

@@ -1,8 +1,8 @@
 {
-  "name": "Example Stripe Backend",
-  "description": "For testing the Stripe example mobile apps at github.com/stripe/stripe-ios and github.com/stripe/stripe-android",
-  "repository": "https://github.com/stripe/example-ios-backend",
-  "keywords": ["ios", "stripe"],
+  "name": "Example Terminal Backend",
+  "description": "For testing the Stripe Terminal SDK example apps. https://stripe.com/docs/terminal",
+  "repository": "https://github.com/stripe/example-terminal-backend",
+  "keywords": ["ios", "android", "javascript", "stripe", "terminal", "stripe terminal"],
   "env": {
     "STRIPE_TEST_SECRET_KEY": {
       "description": "Find this at https://dashboard.stripe.com/account/apikeys (it'll look like sk_test_****)",