Implement a script to generate sub-pages automatically.

[imironhead]

What

To simplify the process, let editors add only markdown notes with predefined templates. Then use scripts to generate the other pages (e.g. the entry page) automatically.

Why

Editing links and useful sub-pages can be exhausting, let's make it easy.

How

Implement a script to do:

• Collect metadata (for example, oss and tags) from ./research_papers/
• Generate useful sub-page base on the collected metadata (e.g. a page for VSR research, another page for all CVPR papers)
• Generate the entry page to show useful sub-pages (e.g. entry point of different research area like VSR and RecSys)

To make life easier, things may be hardcoded in the script (for example, the foreword of the VSR sub-page)

[imironhead]

Merged.