Update sync-image.yml

.github/ISSUE_TEMPLATE/sync-image.yml

@@ -9,6 +9,22 @@ body:
       # ↑↑↑↑↑↑↑↑↑↑↑ 填入你要同步的 Image
       ## 请包含 域名/路径:标签
 
+- type: markdown
+  attributes:
+    value: |
+      ## 调用接口触发
+      ``` bash
+      curl -X POST \
+        -H "Authorization: Bearer ${TOKEN}" \
+        -H "Accept: application/vnd.github+json" \
+        https://api.github.com/repos/DaoCloud/public-image-mirror/issues \
+        -d "{
+          \"title\": \"${IMAGE}\",
+          \"labels\": [\"sync image\"],
+          \"template\": \"sync-image\"
+      }"
+      ```
+
 - type: checkboxes
   attributes:
     label: 镜像域名 (镜像仓库)