Revert "Remove link to region gen script in readme"
Revert "Remove link to region gen script in readme"

This reverts commit 5b32bf80b5e63f616d3f008f3a476e5f5c3fe6e5.

npct/pct-shiny,npct/pct-shiny,npct/pct-shiny,npct/pct-shiny,npct/pct-shiny,npct/pct-shiny