Add 2.x notes and links

docs/api-guide/fields.md

 source: fields.py
 
+---
+
+**Note**: This is the documentation for the **version 3.0** of REST framework. Documentation for [version 2.4](http://tomchristie.github.io/rest-framework-2-docs/) is also available.
+
+---
+
 # Serializer fields
 
 > Each field in a Form class is responsible not only for validating data, but also for "cleaning" it — normalizing it to a consistent format.

docs/api-guide/generic-views.md

 source: mixins.py
         generics.py
 
+---
+
+**Note**: This is the documentation for the **version 3.0** of REST framework. Documentation for [version 2.4](http://tomchristie.github.io/rest-framework-2-docs/) is also available.
+
+---
+
 # Generic views
 
 > Django’s generic views... were developed as a shortcut for common usage patterns... They take certain common idioms and patterns found in view development and abstract them so that you can quickly write common views of data without having to repeat yourself.

docs/api-guide/metadata.md

 <a class="github" href="metadata.py"></a>
 
+---
+
+**Note**: This is the documentation for the **version 3.0** of REST framework. Documentation for [version 2.4](http://tomchristie.github.io/rest-framework-2-docs/) is also available.
+
+---
+
 # Metadata
 
 > [The `OPTIONS`] method allows a client to determine the options and/or requirements associated with a resource, or the capabilities of a server, without implying a resource action or initiating a resource retrieval.

docs/api-guide/relations.md

 source: relations.py
 
+---
+
+**Note**: This is the documentation for the **version 3.0** of REST framework. Documentation for [version 2.4](http://tomchristie.github.io/rest-framework-2-docs/) is also available.
+
+---
+
 # Serializer relations
 
 > Bad programmers worry about the code.

docs/api-guide/requests.md

 source: request.py
 
+---
+
+**Note**: This is the documentation for the **version 3.0** of REST framework. Documentation for [version 2.4](http://tomchristie.github.io/rest-framework-2-docs/) is also available.
+
+---
+
 # Requests
 
 > If you're doing REST-based web service stuff ... you should ignore request.POST.

docs/api-guide/serializers.md

 source: serializers.py
 
+---
+
+**Note**: This is the documentation for the **version 3.0** of REST framework. Documentation for [version 2.4](http://tomchristie.github.io/rest-framework-2-docs/) is also available.
+
+---
+
 # Serializers
 
 > Expanding the usefulness of the serializers is something that we would

docs/api-guide/validators.md

 <a class="github" href="validators.py"></a>
 
+---
+
+**Note**: This is the documentation for the **version 3.0** of REST framework. Documentation for [version 2.4](http://tomchristie.github.io/rest-framework-2-docs/) is also available.
+
+---
+
 # Validators
 
 > Validators can be useful for re-using validation logic between different types of fields.

docs/index.md

@@ -9,7 +9,7 @@
 
 ---
 
-**Note**: The incoming 3.0 version has now been merged to the `master` branch on GitHub. For the source of the currently available PyPI version, please see the `2.4.4` tag.
+**Note**: This is the documentation for the **version 3.0** of REST framework. Documentation for [version 2.4](http://tomchristie.github.io/rest-framework-2-docs/) is also available.
 
 ---