feat(docs/meetup-2-guide): add register and badge customization actions

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

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

@@ -4,7 +4,7 @@ description: 'Nix CN Meetup #2 is the second Nix-themed meetup in China. We aim
 sidebar:
     label: 'Meetup #2 Guide'
 ---
-
+import { LinkButton } from '@astrojs/starlight/components';
 import { Aside } from '@astrojs/starlight/components';
 
 <Aside type="caution">Translated by ChatGPT, not proofread.</Aside>
@@ -17,6 +17,13 @@ Nix CN Meetup #2 is the second Nix-themed gathering in China. We aim to bring to
 - **Venue:** Dong Xiayuan Building, Shanghai Jiao Tong University, Minhang Campus
   (800 Dongchuan Road, Minhang District, Shanghai)
 
+<LinkButton href='https://v.wjx.cn/vm/m9YRDuN.aspx' icon='external' iconPlacement='end'>
+    Register
+</LinkButton>
+<LinkButton href='#' icon='external' variant='secondary' iconPlacement='end'>
+    Name Badge Customization Request (Coming Soon)
+</LinkButton>
+
 ## Transportation Information
 
 ### Arriving in Shanghai

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

@@ -4,6 +4,7 @@ description: 'Nix CN Meetup #2 是国内第二次以 Nix 为主题的聚会。
 sidebar:
     label: 'Meetup #2 参会指南'
 ---
+import { LinkButton } from '@astrojs/starlight/components';
 
 Nix/NixOS CN Meetup #2 是国内第二次以 Nix 为主题的聚会。我们希望汇聚国内 NixOS 爱好者、开发者和实践者，共同分享 NixOS 的使用经验、最佳实践以及在不同场景下的应用案例。
 
@@ -12,6 +13,13 @@ Nix/NixOS CN Meetup #2 是国内第二次以 Nix 为主题的聚会。我们希
 - 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）东下院
 
+<LinkButton href='https://v.wjx.cn/vm/m9YRDuN.aspx' icon='external' iconPlacement='end'>
+    填写报名表
+</LinkButton>
+<LinkButton href='#' icon='external' variant='secondary' iconPlacement='end'>
+    填写名牌定制需求表（尚未开放）
+</LinkButton>
+
 ## 交通信息
 
 ### 抵达上海