Merge pull request #158 from jupyterlab/blink1073-patch-1

Update Badges in Readme

Author: blink1073

README.md

@@ -1,6 +1,9 @@
 # Lumino
 
-[![Build Status](https://travis-ci.org/jupyterlab/lumino.svg?branch=master)](https://travis-ci.org/jupyterlab/lumino)
+[![Build Status](https://github.com/jupyterlab/jupyterlab/workflows/Windows%20Tests/badge.svg)](https://github.com/jupyterlab/jupyterlab/actions?query=branch%3Amaster+workflow%3A%22tests%22)
+[![Documentation Status](https://readthedocs.org/projects/jupyterlab/badge/?version=stable)](http://lumino.readthedocs.io/en/latest/)
+[![GitHub](https://img.shields.io/badge/issue_tracking-github-blue.svg)](https://github.com/jupyterlab/lumino/issues)
+[![Discourse](https://img.shields.io/badge/help_forum-discourse-blue.svg)](https://discourse.jupyter.org/c/jupyterlab)
 
 Lumino is a set of JavaScript packages, written in TypeScript, that provide
 a rich toolkit of widgets, layouts, events, and data structures. These enable