fix(docs): use /TeleFuser/ prefix for all absolute links to match GitHub Pages project path

- site_url updated to https://tele-ai.github.io/TeleFuser
- extra.alternate links changed from /zh/ to /TeleFuser/zh/
- en/index.md and zh/index.md cross-language links updated with prefix
- Removed docs/README.md and docs/README_zh.md (redundant with MkDocs index)

Author: lzx1413

docs/en/index.md

@@ -63,4 +63,4 @@ telefuser stream-serve examples/stream_server/stream_lingbot_world_fast.py -p 80
 
 ---
 
-[Switch to Chinese 🇨🇳](/zh/)
+[Switch to Chinese 🇨🇳](/TeleFuser/zh/)

docs/zh/index.md

@@ -63,4 +63,4 @@ telefuser stream-serve examples/stream_server/stream_lingbot_world_fast.py -p 80
 
 ---
 
-[切换到英文 🇬🇧](/)
+[切换到英文 🇬🇧](/TeleFuser/)

mkdocs.yml

@@ -6,7 +6,7 @@
 site_name: TeleFuser
 site_description: A high-performance framework for efficient multimodal generation model inference
 site_author: TeleAI Team
-site_url: https://telefuser.github.io
+site_url: https://tele-ai.github.io/TeleFuser
 
 # Repository
 repo_name: TeleFuser
@@ -187,10 +187,10 @@ nav:
 extra:
   alternate:
     - name: English
-      link: /
+      link: /TeleFuser/
       lang: en
     - name: 中文
-      link: /zh/
+      link: /TeleFuser/zh/
       lang: zh
   analytics:
     feedback: