updated docs with v4.0.0 compatability info

Author: charlesworth

README.md

@@ -134,11 +134,11 @@ These can be used to interact directly with the HTTP and Websocket APIs. Useful
 
 To determine which version of the SDK works with your Eva's software version number (found on the Choreograph config page), please use the following chart:
 
-| SDK Version | Supported Eva Version |
-| ----------- | --------------------- |
-| 1.0.0       | 2.0.0 - 2.1.2         |
-| 2.0.0       | 3.0.0 - 3.0.1         |
-| 3.0.0       | 3.1.0                 |
+| SDK Version   | Supported Eva Version |
+| ------------- | --------------------- |
+| 1.0.0         | 2.0.0 - 2.1.2         |
+| 2.0.0         | 3.0.0 - 3.0.1         |
+| 3.0.0 - 4.0.0 | 3.1.0                 |
 
 For more information on how to install a particular version of the SDK, please refer to the [Installation](#Installation) section. We use the [Semver](https://semver.org/) version numbering stratergy.