added some docker compose examples; fixed defaults to wrong host; updated watcher behavior to retry connection every 3 secs until success or until cancelled

examples/siyuan.yml

@@ -0,0 +1,16 @@
+services:
+  main:
+    image: b3log/siyuan:v3.1.0
+    container_name: siyuan
+    command:
+      - --workspace=/siyuan/workspace/
+      - --accessAuthCode=<some password>
+    user: 1000:1000
+    volumes:
+      - ./workspace:/siyuan/workspace
+    restart: unless-stopped
+    environment:
+      - TZ=Asia/Hong_Kong
+    ports:
+      - 6806
+# siyuan.domain.tld