Example: add README.md and setup.sh

Author: greenrobot

Example/Podfile

@@ -1,3 +1,4 @@
+#You don't need this, unless you want to get access to latest release candidates or preview versions:
 #source 'https://github.com/objectbox/objectbox-swift-spec-staging'
 
 use_frameworks!

Example/README.md

@@ -0,0 +1,20 @@
+ObjectBox Example
+=================
+The "Notes" example app demonstrate ObjectBox's Swift API.
+The example comes with two apps: one for iOS and one for macOS. The iOS example is a full GUI application, whereas the macOS example runs a few operations and then exits.
+
+Example setup
+-------------
+Just like in any other project, you need te setup CocoaPods and ObjectBox.
+Simply run `./setup.sh` inside this directory, or copy paste this into a terminal:
+
+    pod install # if that fails, update CocoaPods (see Installation)
+    Pods/ObjectBox/setup.rb
+
+This will generate a `NotesExample.xcworkspace` that you can launch to try out ObjectBox.
+
+Updating to newer ObjectBox versions
+------------------------------------
+    pod repo update
+    pod update
+    Pods/ObjectBox/setup.rb

Example/setup.sh

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+set -eu
+
+# Typical ObjectBox project setup using CocoaPods; see https://swift.objectbox.io/install for details.
+
+pod repo update
+pod install
+Pods/ObjectBox/setup.rb