update sequel.html.md to fix 404 (#198)
update sequel.html.md to fix 404 (#198)

* update sequel.html.md to fix 404

fxied link to https://github.com/jeremyevans/sequel

* Update source/ruby/integrations/sequel.html.md

Tom's correction

Co-Authored-By: aksie <eb0877843acc39f8ef6f7269937dee931c372d23@appsignal.com>

appsignal/appsignal-docs