Redirect PPPL DataSpace collections to PDC

[kelynch]

Redirect collections with the "Ready!" status in the "ARK Migrated?" column in this spreadsheet to the PDC Discovery URLs in the "PDC Discovery URL" column on the same row.

Collections to be migrated:

• Princeton Plasma Physics Laboratory
• ITER and Tokamaks
• ITER and Tokamaks - PPPL Collaborations
• Spherical Torus
• Spherical Torus - MAST-U
• Spherical Torus - NSTX
• Spherical Torus - NSTX-U
• Theory
• Theory - Theory
• Theory and Computation

Completion Criteria

• Each of the above-listed collections' arks are redirected to PDC Discovery correctly
• The above-linked spreadsheet is updated to reflect this

[bess]

done!