message: Replace coverage badges to coveralls.io in pkg/javascript/README.md
diff: [![GitHub](https://img.shields.io/github/stars/gluesql/gluesql)](https://github.com/gluesql/gluesql)
  [![LICENSE](https://img.shields.io/crates/l/gluesql.svg)](https://github.com/gluesql/gluesql/blob/main/LICENSE)
  [![Chat](https://img.shields.io/discord/780298017940176946)](https://discord.gg/C6TDEgzDzY)
  -[![codecov.io](https://codecov.io/github/gluesql/gluesql/coverage.svg?branch=main)](https://codecov.io/github/gluesql/gluesql?branch=main)
  +[![Coverage Status](https://coveralls.io/repos/github/gluesql/gluesql/badge.svg?branch=main)](https://coveralls.io/github/gluesql/gluesql?branch=main)
  GlueSQL.js is a SQL database for web browsers and Node.js. It works as an embedded database and entirely runs in the browser.
  GlueSQL.js supports in-memory storage backend, but it will soon to have localStorage, sessionStorage and indexedDB backend supports.
  