update documentation with release 2.3.0

Author: dadoonet

README.md

@@ -7,15 +7,15 @@ for the unicast discovery mechanism and add S3 repositories.
 In order to install the plugin, run: 
 
 ```sh
-bin/plugin -install elasticsearch/elasticsearch-cloud-aws/2.2.0
+bin/plugin -install elasticsearch/elasticsearch-cloud-aws/2.3.0
 ```
 
 You need to install a version matching your Elasticsearch version:
 
 | Elasticsearch | AWS Cloud Plugin | Docs |
 |------------------------|-------------------|------------------------------------------------------------------------------------------------------------------------------------|
 | master | Build from source | See below |
-| es-1.3 | Build from source | [2.3.0-SNAPSHOT](https://github.com/elasticsearch/elasticsearch-cloud-aws/tree/es-1.3/#version-230-snapshot-for-elasticsearch-13) |
+| es-1.3 |  2.3.0 | [2.3.0](https://github.com/elasticsearch/elasticsearch-cloud-aws/tree/v2.3.0/#version-230-for-elasticsearch-13)  |
 | es-1.2 | 2.2.0 | [2.2.0](https://github.com/elasticsearch/elasticsearch-cloud-aws/tree/v2.2.0/#aws-cloud-plugin-for-elasticsearch) |
 | es-1.1 | 2.1.1 | [2.1.1](https://github.com/elasticsearch/elasticsearch-cloud-aws/tree/v2.1.1/#aws-cloud-plugin-for-elasticsearch) |
 | es-1.0 | 2.0.0 | [2.0.0](https://github.com/elasticsearch/elasticsearch-cloud-aws/tree/v2.0.0/#aws-cloud-plugin-for-elasticsearch) |