readme: add an acknowledgements section
readme: add an acknowledgements section

Summary:
* Thank and credit our former colleagues for inspiring
  the architecture of this framework.

Task: None

Test Plan: None

Reviewers: wbiela

Reviewed By: wbiela

Subscribers: wbiela

Differential Revision: https://phabricator.td.teradata.com/D835

prestodb/tempto,prestodb/tempto