[DOC] Improve readme

README.md

@@ -1,5 +1,26 @@
-# bpmn-layout-generators [![Build Status](https://travis-ci.com/process-analytics/bpmn-layout-generators.svg?branch=master)](https://travis-ci.com/process-analytics/bpmn-layout-generators) 
-[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-v2.0%20adopted-ff69b4.svg)](https://github.com/process-analytics/.github/blob/main/CODE_OF_CONDUCT.md)
+<h1 align="center">BPMN Layout Generators</h1> <br>
+<p align="center">
+    <p align="center">
+        <a href="https://github.com/process-analytics/bpmn-layout-generators/releases">
+            <img alt="GitHub release (latest by date including pre-releases" src="https://img.shields.io/github/v/release/process-analytics/bpmn-layout-generators?color=orange&include_prereleases"> 
+        </a> 
+        <a href="https://travis-ci.com/process-analytics/bpmn-layout-generators">
+            <img alt="Build" src="https://travis-ci.com/process-analytics/bpmn-layout-generators.svg?branch=master"> 
+        </a> 
+        <br>
+        <a href="CONTRIBUTING.md">
+            <img alt="PRs Welcome" src="https://img.shields.io/badge/PRs-welcome-ff69b4.svg?style=flat-square"> 
+        </a> 
+        <a href="https://github.com/process-analytics/.github/blob/main/CODE_OF_CONDUCT.md">
+            <img alt="Contributor Covenant" src="https://img.shields.io/badge/Contributor%20Covenant-v2.0%20adopted-ff69b4.svg"> 
+        </a> 
+        <a href="LICENSE">
+            <img alt="License" src="https://img.shields.io/github/license/process-analytics/bpmn-layout-generators?color=blue"> 
+        </a> 
+    </p>
+</p>
+
+:warning: THIS IS AN EXPERIMENTAL PROJECT :warning:
 
 Tools for generating missing BPMNDiagram elements in BPMN files
 
@@ -21,3 +42,8 @@ Java
 
 Javascript
 - https://github.com/bpmn-io/bpmn-auto-layout/
+
+## License
+
+`bpmn-layout-generators` is released under the [Apache 2.0](LICENSE) license. \
+Copyright &copy; 2020, Bonitasoft S.A.