Thank you all! Especially Liam for help.
Errors I was making: make sure you're using the Beta version (as of now) add both plugins (Facebook and Facebook Instant Games plugin).
Add the APP ID and the Secret. Upload the ZIP. Push to production (click the star next to your upload.)
Along left-side menu goto instant games - details - and Share it - I recommend sharing it with privacy Only Me - until you are ready to go public.
It will show in your timeline and be test-able there. Thanks all for help. The Dev Community is the BEST!