feat(docs/meetup-2-guide): add live website

- Added live website to cn and en docs
- Removed unnecessary bold format around EN-Event Information titles

Signed-off-by: Noa Virellia <noa@requiem.garden>

src/content/docs/en/meetup-2-guide.mdx

@@ -11,9 +11,9 @@ Nix CN Meetup #2 is the second Nix-themed gathering in China. We aim to bring to
 
 ## Event Information
 
-- **Date (UTC+8):** 2025/12/27 (Sat.) ~ 2025/12/28 (Sun.)
-- **Venue:** [101 Dong Shangyuan Building（东上院）](https://ids.sjtu.edu.cn/build/goRoomPage?param=54870d87298ecd296ef8a0048d8bab4c79eee9f4a5af6afd5ce469bb3834663c9f443d6632843771451540f4171589d4), Minhang Campus, Shanghai Jiao Tong University
-  (800 Dongchuan Road, Minhang District, Shanghai)
+- Date (UTC+8): 2025/12/27 (Sat.) ~ 2025/12/28 (Sun.)
+- Venue: [101 Dong Shangyuan Building（东上院）](https://ids.sjtu.edu.cn/build/goRoomPage?param=54870d87298ecd296ef8a0048d8bab4c79eee9f4a5af6afd5ce469bb3834663c9f443d6632843771451540f4171589d4), Minhang Campus, Shanghai Jiao Tong University (800 Dongchuan Road, Minhang District, Shanghai)
+- Live: [youtube:@nixcn-meetup](https://youtube.com/@nixcn-meetup)
 
 <LinkButton href='https://v.wjx.cn/vm/m9YRDuN.aspx' icon='external' iconPlacement='end'>
     Register (Chinese)

src/content/docs/meetup-2-guide.mdx

@@ -12,7 +12,8 @@ Nix CN Meetup #2 是国内第二次以 Nix 为主题的聚会。我们希望汇
 ## 会议信息
 
 - 日期（UTC +8）：2025/12/27 (Sat.) ~ 2025/12/28 (Sun.)
-- 地点：上海交通大学闵行校区（上海市闵行区东川路800号）[东上院 101](https://ids.sjtu.edu.cn/build/goRoomPage?param=54870d87298ecd296ef8a0048d8bab4c79eee9f4a5af6afd5ce469bb3834663c9f443d6632843771451540f4171589d4)
+- 线下会议地点：上海交通大学闵行校区（上海市闵行区东川路800号）[东上院 101](https://ids.sjtu.edu.cn/build/goRoomPage?param=54870d87298ecd296ef8a0048d8bab4c79eee9f4a5af6afd5ce469bb3834663c9f443d6632843771451540f4171589d4)
+- 线上直播地址：[youtube:@nixcn-meetup](https://youtube.com/@nixcn-meetup)
 
 <LinkButton href='https://v.wjx.cn/vm/m9YRDuN.aspx' icon='external' iconPlacement='end'>
     填写报名表