docs(SiYuan): Use the official SiYuan logo (#216)

* docs(SiYuan): Use the official SiYuan logo

* docs(SiYuan): Update project name

README.md

@@ -128,8 +128,8 @@ English/[简体中文](https://github.com/deepseek-ai/awesome-deepseek-integrati
         <td> <a href="https://www.zotero.org">Zotero</a> is a free, easy-to-use tool to help you collect, organize, annotate, cite, and share research.</td>
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-        <td> <img src="./docs/Siyuan/assets/image-20250122162731-7wkftbw.png" alt="Icon" width="64" height="auto" /> </td>
-        <td> <a href="docs/Siyuan/README.md">SiYuan</a> </td>
+        <td> <img src="https://b3log.org/images/brand/siyuan-128.png" alt="Icon" width="64" height="auto" /> </td>
+        <td> <a href="docs/SiYuan/README.md">SiYuan</a> </td>
         <td> SiYuan is a privacy-first personal knowledge management system that supports complete offline usage, as well as end-to-end encrypted data sync.</td>
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     <tr>

README_cn.md

@@ -89,8 +89,8 @@
         <td> <a href="https://www.zotero.org">Zotero</a> 是一款免费且易于使用的文献管理工具，旨在帮助您收集、整理、注释、引用和分享研究成果。</td>
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-        <td> <img src="./docs/Siyuan/assets/image-20250122162731-7wkftbw.png" alt="Icon" width="64" height="auto" /> </td>
-        <td> <a href="docs/Siyuan/README_cn.md">思源笔记</a> </td>
+        <td> <img src="https://b3log.org/images/brand/siyuan-128.png" alt="Icon" width="64" height="auto" /> </td>
+        <td> <a href="docs/SiYuan/README_cn.md">思源笔记</a> </td>
         <td> 思源笔记是一款隐私优先的个人知识管理系统，支持完全离线使用，并提供端到端加密的数据同步功能。</td>
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README_ja.md

@@ -99,8 +99,8 @@ DeepSeek APIを人気のソフトウェアに統合します。APIキーを取
         <td> <a href="https://www.zotero.org">Zotero</a>は、研究成果を収集、整理、注釈、引用、共有するのに役立つ無料で使いやすいツールです。</td>
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-        <td> <img src="./docs/Siyuan/assets/image-20250122162731-7wkftbw.png" alt="Icon" width="64" height="auto" /> </td>
-        <td> <a href="docs/Siyuan/README.md">SiYuan</a> </td>
+        <td> <img src="https://b3log.org/images/brand/siyuan-128.png" alt="Icon" width="64" height="auto" /> </td>
+        <td> <a href="docs/SiYuan/README.md">SiYuan</a> </td>
         <td> SiYuanは、完全にオフラインで使用できるプライバシー優先の個人知識管理システムであり、エンドツーエンドの暗号化データ同期を提供します。</td>
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docs/SiYuan/README.md

@@ -2,7 +2,7 @@
 
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-​![image](assets/image-20250122162731-7wkftbw.png)​
+​![image](https://b3log.org/images/brand/siyuan-128.png)​
 
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docs/SiYuan/README_cn.md

@@ -1,6 +1,6 @@
 # README_cn
 
-​![image](assets/image-20250122162731-7wkftbw.png)​
+​![image](https://b3log.org/images/brand/siyuan-128.png)​
 
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