text: Title: Move the old Jina/Docarray relation docs from DocArray documenation to the jina one
  Body: # Context
  
  DocArray is moving into its own organization and reference to the jina project are slowly beeing removed.
  
  Therefore we will loose this documentation at some point in docarray :  https://docarray.jina.ai/fundamentals/jina-support/ 
  
  We need to move to content to the Jina documentation as it is still relevant.
  
  It is more than copy pasting, work need to be done in the working because it is not jina info in docarray but docarray info in jina. The content is mostly the same though