Docs: Added links to RxJava and Reactive Streams docs

JAVA-2519

Author: rozza

docs/reference/content/driver-async/getting-started/quick-start.md

@@ -13,6 +13,13 @@ title = "Quick Start"
 The following code snippets come from the [`QuickTour.java`]({{< srcref "driver-async/src/examples/tour/QuickTour.java">}}) example code
 that can be found with the async driver source on github.
 
+{{% note %}}
+There are two higher level MongoDB Asynchronous Java Drivers available, that users may find easier to work with due to their friendlier APIs:
+
+* [MongoDB RxJava Driver](http://mongodb.github.io/mongo-java-driver-rx/) An RxJava implementation of the MongoDB Driver.
+* [MongoDB Reactive Streams Java Driver](http://mongodb.github.io/mongo-java-driver-reactivestreams/) A Reactive Streams implementation for the JVM.
+{{% /note %}}
+
 ## SingleResultCallback
 
 The MongoDB Async driver provides an asynchronous API that can leverage either Netty or Java 7's `AsynchronousSocketChannel` for fast and non-blocking I/O.

docs/reference/content/driver-async/index.md

@@ -1,7 +1,6 @@
 +++
 date = "2015-03-17T15:36:56Z"
 title = "MongoDB Async Driver"
-type = "index"
 [menu.main]
   weight = 30
   identifier = "MongoDB Async Driver"
@@ -10,16 +9,20 @@ type = "index"
 
 ## MongoDB Async Java Driver Documentation
 
-The following guide provides information on using the
-MongoDB Async Java Driver 3.4.
+The following guide provides information on using the callback based MongoDB Async Java Driver 3.4.
+
+{{% note %}}
+There are two higher level MongoDB Asynchronous Java Drivers available, that users may find easier to work with due to their friendlier APIs:
+
+* [MongoDB RxJava Driver](http://mongodb.github.io/mongo-java-driver-rx/) An RxJava implementation of the MongoDB Driver.
+* [MongoDB Reactive Streams Java Driver](http://mongodb.github.io/mongo-java-driver-reactivestreams/) A Reactive Streams implementation for the JVM.
+{{% /note %}}
 
 ### What's New in 3.4
 
-The [What's New]({{< relref "whats-new.md" >}}) guide explains
-the major new features of the driver.
+The [What's New]({{< relref "whats-new.md" >}}) guide explains the major new features of the driver.
 
-If you are upgrading from the 2.x series of the driver, consult the
-[Upgrading]({{< relref "upgrading.md" >}}) documentation for
+If you are upgrading from the 2.x series of the driver, consult the [Upgrading]({{< relref "upgrading.md" >}}) documentation for
 information on breaking changes.
 
 ## Getting Started