docs: add coldmountein as a contributor for code (#416)

* docs: update README.md [skip ci]

* docs: update .all-contributorsrc [skip ci]

---------

Co-authored-by: allcontributors[bot] <46447321+allcontributors[bot]@users.noreply.github.com>

.all-contributorsrc

@@ -201,6 +201,15 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "coldmountein",
+      "name": "coldmountain",
+      "avatar_url": "https://avatars.githubusercontent.com/u/95873096?v=4",
+      "profile": "https://github.com/coldmountein",
+      "contributions": [
+        "code"
+      ]
     }
   ],
   "contributorsPerLine": 7,

README.md

@@ -1,7 +1,7 @@
 # xiaohongshu-mcp
 
 <!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
-[![All Contributors](https://img.shields.io/badge/all_contributors-21-orange.svg?style=flat-square)](#contributors-)
+[![All Contributors](https://img.shields.io/badge/all_contributors-22-orange.svg?style=flat-square)](#contributors-)
 <!-- ALL-CONTRIBUTORS-BADGE:END -->
 
 [![善款已捐](https://img.shields.io/badge/善款已捐-CNY%201300.00-brightgreen?style=flat-square)](./DONATIONS.md)
@@ -840,6 +840,9 @@ Cline 是一个强大的 AI 编程助手，支持 MCP 协议集成。
       <td align="center" valign="top" width="14.28%"><a href="https://triepod.ai"><img src="https://avatars.githubusercontent.com/u/199543909?v=4?s=100" width="100px;" alt="Bryan Thompson"/><br /><sub><b>Bryan Thompson</b></sub></a><br /><a href="https://github.com/xpzouying/xiaohongshu-mcp/commits?author=triepod-ai" title="Code">💻</a></td>
       <td align="center" valign="top" width="14.28%"><a href="http://www.megvii.com"><img src="https://avatars.githubusercontent.com/u/7806992?v=4?s=100" width="100px;" alt="tan jun"/><br /><sub><b>tan jun</b></sub></a><br /><a href="https://github.com/xpzouying/xiaohongshu-mcp/commits?author=tanxxjun321" title="Code">💻</a></td>
     </tr>
+    <tr>
+      <td align="center" valign="top" width="14.28%"><a href="https://github.com/coldmountein"><img src="https://avatars.githubusercontent.com/u/95873096?v=4?s=100" width="100px;" alt="coldmountain"/><br /><sub><b>coldmountain</b></sub></a><br /><a href="https://github.com/xpzouying/xiaohongshu-mcp/commits?author=coldmountein" title="Code">💻</a></td>
+    </tr>
   </tbody>
 </table>