fix(core): fix documentation link path and error message links

[wudifeixue]

Involved Issue / 该 PR 相关 Issue

RSSNext/rsshub-docs#6
RSSNext/rsshub-docs#7
RSSNext/rsshub-docs#8
Close #

Example for the Proposed Route(s) / 路由地址示例

NOROUTE

New RSS Route Checklist / 新 RSS 路由检查表

• New Route / 新的路由
  • Follows Script Standard / 跟随 路由规范
• Anti-bot or rate limit / 反爬/频率限制
  • If yes, do your code reflect this sign? / 如果有, 是否有对应的措施?
• Date and time / 日期和时间
  • Parsed / 可以解析
  • Correct time zone / 时区正确
• New package added / 添加了新的包
• Puppeteer

Note / 说明

What this PR does

I have fixed a lot of issues on the repo due to the new documentation based on Vitepress: https://twitter.com/DIYgod/status/1769715283869200616

Most of them are broken links, some for example I consider pretty important ones such as:

1. Deployment doc location (install -> deploy)
2. Sponsor button on RSShub homepage leading to 404 PAGE NOT FOUND (support -> sponsor)
3. Documentation leading to the wrong path https://docs.rsshub.app/en -> http://docs.rsshub.app