COMMUNITY: Standard text for demo Stackscripts

We need review of the text for our demo Torgap stackscripts (initially the Torgap demo and the open time stamp demo). In particular, at the bottom it needs to credit blockchain commons, and link to the appropriate repo if they want to hose their own, and a call for support.

Longer term, we need to add a spot for the "host" of one of these services can advertise they are hosting it (for instance Bitmark), but that it was written by Blockchain Commons and to support us.

- [x] Write Standard Text: "This a Proof of Concept. Use at Own Risk. See Repo. See Blockchain Commons."
- [ ] Flag It in Issues for current projects

See also #142
/cc @shannona
@nochiel