Update README usage instructions

rbygrave · rbygrave · commit f8eb8878f2ec · 2022-07-26T14:27:55.000+12:00
diff --git a/README.md b/README.md
@@ -1,2 +1,30 @@
+[![Build](https://github.com/avaje/avaje-applog-slf4j/actions/workflows/build.yml/badge.svg)](https://github.com/avaje/avaje-applog-slf4j/actions/workflows/build.yml)
+[![Maven Central](https://img.shields.io/maven-central/v/io.avaje/avaje-applog-slf4j.svg?label=Maven%20Central)](https://mvnrepository.com/artifact/io.avaje/avaje-applog-slf4j)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://github.com/avaje/avaje-applog-slf4j/blob/master/LICENSE)
+[![JDK EA](https://github.com/avaje/avaje-applog-slf4j/actions/workflows/jdk-ea.yml/badge.svg)](https://github.com/avaje/avaje-applog-slf4j/actions/workflows/jdk-ea.yml)
+
 # avaje-applog-slf4j
 SLF4J provider for AppLog System.Logger
+
+### Dependency
+
+```xml
+<dependency>
+  <groupId>io.avaje</groupId>
+  <artifactId>avaje-applog-slf4j</artifactId>
+  <version>1.0</version>
+</dependency>
+```
+
+### How to use
+
+Add the above dependency into the classpath / module-path.
+
+If using module-path additionally add a requires clause into module-info:
+
+```java
+requires io.avaje.applog.slf4j;
+```
+
+This means that the System.Logger returned by AppLog.getLogger() uses
+`slf4j-api Logger` and all the log events are processed by slf4j-api.
