Update gem description and add #Thanks section.
Update gem description and add #Thanks section.

cepko33/analytics-js-rails,cepko33/analytics-js-rails,phillbaker/analytics-js-rails,firecracker/analytics-js-rails,firecracker/analytics-js-rails,phillbaker/analytics-js-rails,cepko33/analytics-js-rails,firecracker/analytics-js-rails