docs: add community group QR code

.gitignore

@@ -51,6 +51,7 @@ examples/
 !assets/
 !assets/slides_example.png
 !assets/paper-figures-example.png
+!assets/codex-ppt-community-qr.png
 !assets/good-skill-design.pptx
 !assets/style-previews/
 !assets/style-previews/*.png

README.md

@@ -198,6 +198,12 @@ skill 会按以下流程执行：
 - 你也可以提供喜欢的 PPT 风格参考，可以是一张截图、多张截图，或完整 PPT/PDF。建议先让当前 agent 分析参考材料的配色、版式、字体和视觉元素，再按这个风格生成新 PPT。生成满意后，也可以让 agent 把这套风格保存到本技能的 `references/` 目录里，方便以后复用。
 - 如果需要插入论文原图、实验结果图、截图或架构图，可以在大纲中指定这些图片对应的页码和用途。
 
+## 交流群
+
+扫描二维码加入 Skill 交流群，分享使用经验、反馈问题，并获取更新通知。
+
+<img src="assets/codex-ppt-community-qr.png" alt="Codex PPT Skill 交流群二维码" width="220">
+
 ## 许可证
 
 MIT

README_en.md

@@ -198,6 +198,12 @@ The skill follows this workflow:
 - You can also provide PPT style references you like — a single screenshot, multiple screenshots, or a full PPT/PDF. Ask the current agent to analyze the colors, layout, typography, and visual elements first, then generate a new deck in that style. Once the result looks good, you can ask the agent to save the style into this skill's `references/` directory for future reuse.
 - If you need to include paper figures, experiment charts, screenshots, or architecture diagrams, specify the target slide and role for each image in the outline.
 
+## Community
+
+Scan the QR code to join the Skill community group, share usage experience, report issues, and receive update notices.
+
+<img src="assets/codex-ppt-community-qr.png" alt="Codex PPT Skill community QR code" width="220">
+
 ## License
 
 MIT