Ajout manifeste Drone CI

.drone.yml

@@ -0,0 +1,7 @@
+---
+  pipeline:
+    test:
+      image: node:latest
+      commands:
+        - npm install
+        - npm test

README.md

@@ -1,6 +1,6 @@
 <style>h1 > img { vertical-align: bottom; }</style>
 
-# ![Logo Pitaya](img/icons/pitaya-logo.png) Pitaya
+# ![Logo Pitaya](img/icons/pitaya-logo.png) Pitaya [![Build Status](https://drone.cadol.es/api/badges/Cadoles/pitaya-launcher/status.svg?branch=develop)](https://drone.cadol.es/Cadoles/pitaya-launcher)
 
 Lanceur d'application pour GNU/Linux