Enable website to display status reports

• Switch to workflow/CI based releases instead of branch-based
• Figure out how to keep a submodule or equivalent to https://github.com/rust-gcc/reporting up to date
  • Probably by cloning the repo every-night and redeploying the website?
• Figure out how to translate from org-mode to markdown or have github pages/jekyll display org-mode properly
  ---> This can be achieved by using the gfm export format for pandoc: pandoc --from=org --to=gfm <file>.org > <file>.md

For the last point, note that pandoc screws up the tables as well as some formatting like C++ code-blocks. So we still have some modifications to do (or maybe we can convert org-mode directly to HTML?)

Empieza revisando la configuración de GitHub Pages/Jekyll y el repositorio rust-gcc/reporting; después, compara los enfoques propuestos de workflow/CI release y nightly clone. Comprueba la conversión de org-to-gfm de pandoc, especialmente las tablas y los bloques de código C++. La tarea estará terminada cuando los status reports se actualicen automáticamente y se rendericen correctamente en el sitio web.