docs: 更新 README 导览图

Author: hect0x7

README.md

@@ -37,7 +37,7 @@
 > 
 
 
-![introduction.jpg](./assets/docs/sources/images/introduction.jpg)
+![introduction.jpg](https://raw.githubusercontent.com/hect0x7/hect0x7/master/images/jmcomic-intro-main.png)
 
 
 ## 项目介绍

assets/docs/sources/images/introduction.jpg

@@ -11,7 +11,7 @@
 
 ## 一图看懂 JMComic 工具生态
 
-![introduction.jpg](images/introduction.jpg)
+![introduction.jpg](https://raw.githubusercontent.com/hect0x7/hect0x7/master/images/jmcomic-intro-main.png)
 
 ## 入门
 

assets/docs/sources/index.md

@@ -37,7 +37,7 @@
 > **Friendly Prompt: Cherish JM. In order to reduce the pressure on JM servers, please do not download too many albums at once 🙏🙏🙏.**
 
 
-![introduction.jpg](../docs/sources/images/introduction.jpg)
+![introduction.jpg](https://raw.githubusercontent.com/hect0x7/hect0x7/master/images/jmcomic-intro-main.png)
 
 
 ## Introduction

assets/readme/README-en.md

@@ -37,7 +37,7 @@
 > **ご案内：JMのサーバー負荷を軽減するため、一度に大量のダウンロードは控えてください 🙏🙏🙏**
 
 
-![introduction.jpg](../docs/sources/images/introduction.jpg)
+![introduction.jpg](https://raw.githubusercontent.com/hect0x7/hect0x7/master/images/jmcomic-intro-main.png)
 
 
 ## プロジェクトの紹介

assets/readme/README-jp.md

@@ -37,7 +37,7 @@
 > **안내: JM 서버의 부하를 줄이기 위해 한 번에 너무 많은 앨범을 다운로드하지 말아주세요 🙏🙏🙏**
 
 
-![introduction.jpg](../docs/sources/images/introduction.jpg)
+![introduction.jpg](https://raw.githubusercontent.com/hect0x7/hect0x7/master/images/jmcomic-intro-main.png)
 
 
 ## 프로젝트 소개