[misc] Readme update

Author: rusher

README.md

@@ -28,29 +28,21 @@ or maven :
 <dependency>
 <groupId>org.mariadb.jdbc</groupId>
 <artifactId>mariadb-java-client</artifactId>
-<version>2.5.4</version>
+<version>2.7.2</version>
 </dependency>
 ```
 
-Development snapshot are available on sonatype nexus repository 
+New version 3.0 is a complete rewrite with code clarification, reduced size (15%), more than 90% coverage tested, with performance gain.
+But still in alpha for now:
 ```script
-<repositories>
- <repository>
- <id>sonatype-nexus-snapshots</id>
- <name>Sonatype Nexus Snapshots</name>
- <url>https://oss.sonatype.org/content/repositories/snapshots</url>
- </repository>
-</repositories>
-
-<dependencies>
- <dependency>
- <groupId>org.mariadb.jdbc</groupId>
- <artifactId>mariadb-java-client</artifactId>
- <version>2.6.0-SNAPSHOT</version>
- </dependency>
-</dependencies>
+<dependency>
+ <groupId>org.mariadb.jdbc</groupId>
+ <artifactId>mariadb-java-client</artifactId>
+ <version>3.0.0-alpha</version>
+</dependency>
 ```
 
+
 ## Documentation
 
 For a Getting started guide, API docs, recipes, etc. see the