Merge pull request #17 from Bisnode/feature/maven-info

Add README maven info, update changelog

CHANGELOG.md

@@ -4,6 +4,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased 
+- Add Maven information to README
+- Update changelog
+
+## [0.4.2] - 2020-10-20
+- Update Guava to 30.0-jre
+- Update OPA Gradle plugin to 0.3.0
+- Update github release script to properly use username and password
+
 ## [0.4.1] - 2020-04-29
 - Release to Maven Central under com.bisnode.kafka.authorization group. No code changes.
 

README.md

@@ -1,4 +1,5 @@
 #  Open Policy Agent plugin for Kafka authorization 
+[![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.bisnode.kafka.authorization/opa-authorizer/badge.svg)](https://maven-badges.herokuapp.com/maven-central/com.bisnode.kafka.authorization/opa-authorizer)
 ![](https://github.com/Bisnode/opa-kafka-plugin/workflows/build/badge.svg)
 [![codecov](https://codecov.io/gh/Bisnode/opa-kafka-plugin/branch/master/graph/badge.svg)](https://codecov.io/gh/Bisnode/opa-kafka-plugin)
 
@@ -12,8 +13,10 @@ Open Policy Agent (OPA) plugin for Kafka authorization.
 
 ## Installation
 
-Download the latest [OPA authorizer plugin](https://github.com/Bisnode/opa-kafka-plugin/releases/) jar and put the
-file (`opa-authorizer-{$VERSION}-all.jar`) somewhere Kafka recognizes it - this could be directly  in Kafkas `libs` directory
+### 
+
+Download the latest OPA authorizer plugin jar from [Releases](https://github.com/Bisnode/opa-kafka-plugin/releases/) (or [Maven Central](https://search.maven.org/artifact/com.bisnode.kafka.authorization/opa-authorizer)) and put the
+file (`opa-authorizer-{$VERSION}.jar`) somewhere Kafka recognizes it - this could be directly  in Kafkas `libs` directory
 or in a separate plugin directory pointed out to Kafka at startup, e.g: 
 
 `CLASSPATH=/usr/local/share/kafka/plugins/*`