Update README.md to enhance user engagement with new payment options

- Changed the WeChat appreciation section to improve clarity and updated the image for better visibility.
- Added a new section for Alipay appreciation, including an image and a friendly message to encourage support.
- Overall improvements to the layout and content for better user experience.

README.md

@@ -209,10 +209,15 @@ You've reached your trial request limit.
 <small>获取更多AI开发资源</small>
 </td>
 <td align="center">
-<b>微信赞赏码</b><br>
-<img src="img/wx_zsm.jpg" width="250" alt="微信赞赏码"><br>
+<b>微信赞赏</b><br>
+<img src="img/wx_zsm2.png" width="250" alt="微信赞赏码"><br>
 <small>要到饭咧？啊咧？啊咧？不给也没事~ 请随意打赏</small>
 </td>
+<td align="center">
+<b>支付宝赞赏</b><br>
+<img src="img/alipay.png" width="250" alt="支付宝赞赏码"><br>
+<small>如果觉得有帮助,来包辣条犒劳一下吧~</small>
+</td>
 </tr>
 </table>
 </div>