forward old websites and blog to new dat-ecosystem website and blog

[serapath]

#115

@todo

• forward https://blog.datproject.org/ to new blog
  • @input 📦 dat-ecosystem blog from 1.1 - Dat-ecosystem blog setup #9
  • @input 📦 dat-ecosystem blog github repo from 1.1 - Dat-ecosystem blog setup #9
• add deprecation notice to old website sub pages
  • e.g. https://dat.foundation/explore/projects/
  • eg. https://docs.datproject.org/
  • e.g. broken link to datbase.org
  • e.g. broken archives.datproject.org
  • e.g. maybe transition https://github.com/juliangruber/dat.haus if possible - consider fork
  • e.g. broken preview links for dat git book https://github.com/dat-ecosystem-archive/book
  • e.g. fix broken links in dat-land website https://dat-ecosystem-archive.github.io/dat.land/
  • e.g. update name to dat-project website https://github.com/dat-ecosystem-archive/dat.foundation

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@info

Any sub pages of old websites which don't have the deprecation notice can and are still found in google search results and a visitor won't know the new pages without the deprecation notice