Making the Wiki work correctly

Situation

The wiki wasn't working. It seems I've fixed it and listed the changes we need. @ecbrad , please review it, check it has the right data in and I will add some code and documentation to avoid this error in the future.

Current Wiki Link

Steps Taken

  1. Correctly informing the REPO_GROUP and REPO environment variables.
  2. Editing the docusaurus environment files, docusaurus_main.config.js and the staging one. This should be informed automatically somehow.
Edited by Octavio Martín Duarte