Update OpenHW Programs page to remove references to OpenHW Group

On https://openhwfoundation.org/projects/ There are two references to OpenHW Group that need to be changed to OpenHW Foundation.

  Under the Programs project:
    
  - Old text: Program and project level documentation for all of OpenHW Group's projects including CORE-V RISC-V cores
  - New text: Program and project level documentation for all of OpenHW Foundation's projects including CORE-V RISC-V cores



    
  Other Tools card with incubating status

 -  Old headline: OpenHW Group Core-V Cores
 - New headline: OpenHW Foundation Core-V Cores

Thanks! Thea