add shaarli service enabling to store and share links

shaarli/docker-compose.yml

@@ -0,0 +1,24 @@
+version: '3'
+
+networks:
+  web:
+    external: true
+
+services:
+  app:
+    image: shaarli/shaarli:latest
+    restart: unless-stopped
+    volumes:
+      - cache:/var/www/shaarli/cache
+      - data:/var/www/shaarli/data
+    labels:
+      traefik.enable: "true"
+      traefik.frontend.rule: "Host: shaarli.${CHATONS_DOMAIN:-localhost}, www.shaarli.${CHATONS_DOMAIN:-localhost}"
+    networks:
+      - web
+      - default
+
+
+volumes:
+  cache:
+  data: