Add a note about v3 readme to the docs

Author: Kadi Kraman

README.md

@@ -7,7 +7,11 @@
 [![Build Status](https://travis-ci.org/FormidableLabs/react-native-app-auth.svg?branch=master)](https://travis-ci.org/FormidableLabs/react-native-app-auth)
 [![npm version](https://badge.fury.io/js/react-native-app-auth.svg)](https://badge.fury.io/js/react-native-app-auth)
 
-#### This is the API documentation for `react-native-app-auth >= 2.0.` [See version `1.x` documentation here](https://github.com/FormidableLabs/react-native-app-auth/tree/v1.0.1).
+#### This is the API documentation for `react-native-app-auth >= 3.0.` (pre-release)
+
+[See version `2.x` documentation here](https://github.com/FormidableLabs/react-native-app-auth/tree/7a3fdc6e3572a998db99777b7562a7e63e0c2008).
+
+[See version `1.x` documentation here](https://github.com/FormidableLabs/react-native-app-auth/tree/v1.0.1).
 
 React Native bridge for [AppAuth-iOS](https://github.com/openid/AppAuth-iOS) and
 [AppAuth-Android](https://github.com/openid/AppAuth-Android) SDKS for communicating with
@@ -18,7 +22,9 @@ This library _should_ support any OAuth provider that implements the
 [OAuth2 spec](https://tools.ietf.org/html/rfc6749#section-2.2).
 
 ### Tested OpenID providers:
+
 These providers are OpenID compliant, which means you can use [autodiscovery](https://openid.net/specs/openid-connect-discovery-1_0.html).
+
 * [Identity Server4](https://demo.identityserver.io/) ([Example configuration](#identity-server-4))
 * [Identity Server3](https://github.com/IdentityServer/IdentityServer3) ([Example configuration](#identity-server-3))
 * [Google](https://developers.google.com/identity/protocols/OAuth2)
@@ -27,7 +33,9 @@ These providers are OpenID compliant, which means you can use [autodiscovery](ht
 * [Keycloak](http://www.keycloak.org/) ([Example configuration](#keycloak))
 
 ### Tested OAuth2 providers:
+
 These providers implement the OAuth2 spec, but are not OpenID providers, which means you must configure the authorization and token endpoints yourself.
+
 * [Uber](https://developer.uber.com/docs/deliveries/guides/three-legged-oauth) ([Example configuration](#uber))
 * [Fitbit](https://dev.fitbit.com/build/reference/web-api/oauth2/) ([Example configuration](#fitbit))
 
@@ -199,31 +207,31 @@ AppAuth supports three options for dependency management.
 
 1. **CocoaPods**
 
-    With [CocoaPods](https://guides.cocoapods.org/using/getting-started.html), add the following line to
-    your `Podfile`:
+   With [CocoaPods](https://guides.cocoapods.org/using/getting-started.html), add the following line to
+   your `Podfile`:
 
-        pod 'AppAuth', '>= 0.91'
+       pod 'AppAuth', '>= 0.91'
 
-    Then run `pod install`. Note that version 0.91 is the first of the library to support iOS 11.
+   Then run `pod install`. Note that version 0.91 is the first of the library to support iOS 11.
 
 2. **Carthage**
 
-    With [Carthage](https://github.com/Carthage/Carthage), add the following line to your `Cartfile`:
+   With [Carthage](https://github.com/Carthage/Carthage), add the following line to your `Cartfile`:
 
-        github "openid/AppAuth-iOS" "master"
+       github "openid/AppAuth-iOS" "master"
 
-    Then run `carthage bootstrap`.
+   Then run `carthage bootstrap`.
 
 3. **Static Library**
 
-    You can also use [AppAuth-iOS](https://github.com/openid/AppAuth-iOS) as a static library. This
-    requires linking the library and your project and including the headers. Suggested configuration:
+   You can also use [AppAuth-iOS](https://github.com/openid/AppAuth-iOS) as a static library. This
+   requires linking the library and your project and including the headers. Suggested configuration:
 
-    1. Create an XCode Workspace.
-    2. Add `AppAuth.xcodeproj` to your Workspace.
-    3. Include libAppAuth as a linked library for your target (in the "General -> Linked Framework and
+   1. Create an XCode Workspace.
+   2. Add `AppAuth.xcodeproj` to your Workspace.
+   3. Include libAppAuth as a linked library for your target (in the "General -> Linked Framework and
       Libraries" section of your target).
-    4. Add `AppAuth-iOS/Source` to your search paths of your target ("Build Settings -> "Header Search
+   4. Add `AppAuth-iOS/Source` to your search paths of your target ("Build Settings -> "Header Search
       Paths").
 
 ##### Register redirect URL scheme
@@ -252,7 +260,7 @@ your `Info.plist` as follows:
 ##### Define openURL callback in AppDelegate
 
 You need to retain the auth session, in order to continue the
-authorization flow from the redirect. Follow these steps: 
+authorization flow from the redirect. Follow these steps:
 
 `RNAppAuth` will call on the given app's delegate via `[UIApplication sharedApplication].delegate`.
 Furthermore, `RNAppAuth` expects the delegate instance to conform to the protocol `RNAppAuthAuthorizationFlowManager`.
@@ -432,7 +440,7 @@ await revoke(config, {
 <details>
   <summary>Example server configuration</summary>
 
-```  
+```
 var client = new Client
 {
   ClientId = "native.code",
@@ -487,7 +495,7 @@ var client = new Client
 {
   ClientId = "native.code",
   ClientName = "Native Client (Code with PKCE)",
-  Flow = Flows.AuthorizationCodeWithProofKey,            
+  Flow = Flows.AuthorizationCodeWithProofKey,
   RedirectUris = { "com.your.app.name:/oauthredirect" },
   ClientSecrets = new List<Secret> { new Secret("your-client-secret".Sha256()) },
   AllowAccessToAllScopes = true
@@ -649,7 +657,6 @@ await revoke(config, {
 });
 ```
 
-
 ## Contributors
 
 Thanks goes to these wonderful people