message: docs: remove copy/paste artifact
diff: ![LGTM Grade](https://img.shields.io/lgtm/grade/javascript/github/graphql/graphiql)
  ![LGTM Alerts](https://img.shields.io/lgtm/alerts/github/graphql/graphiql)
  [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/3887/badge)](https://bestpractices.coreinfrastructure.org/projects/3887)
  -or by embedding this in your HTML:
  ## Overview
  