Updates README.md (#80)

README.md

@@ -1,6 +1,28 @@
+[![Maven Central](https://maven-badges.herokuapp.com/maven-central/org.assertj/assertj-vavr/badge.svg)](https://maven-badges.herokuapp.com/maven-central/org.assertj/assertj-vavr)
+
 # assertj-vavr
-Assertions for Vavr - http://www.vavr.io/
+Assertions for [Vavr](http://www.vavr.io/)
+
+## Usage
+
+### Dependency in your project:
+- build.gradle:
+```groovy
+implementation "org.assertj:assertj-vavr:$version"
+```
+- pom.xml:
+```xml
+<dependency>
+    <groupId>org.assertj</groupId>
+    <artifactId>assertj-vavr</artifactId>
+    <version>${version}</version>
+    <scope>test</scope>
+</dependency>
+```
+
+### Assertions
+Starting point is `org.assertj.vavr.api.VavrAssertions` class. It contains assertions for all supported Vavr types.
 
 ## <a name="contributing"/>Want to contribute?
 
-You are encouraged to contribute any missing, useful assertions. To do so, please read the [contributing section](https://github.com/joel-costigliola/assertj-core/blob/master/CONTRIBUTING.md).
+You are encouraged to contribute any missing, useful assertions. To do so, please read the [contributing section](https://github.com/joel-costigliola/assertj-core/blob/master/CONTRIBUTING.md) from assertj-core.