message: Update README.md
  readme: update docs link
  This is a squash merge of typegoose/typegoose#330
diff: @@ -140,7 +140,7 @@ To ask questions or just talk with us, [join our Discord Server](https://discord
  ## Documentation
  -* [Typegoose Documentation](https://typegoose.github.io/typegoose/docs)
  +* [Typegoose Documentation](https://typegoose.github.io/typegoose/docs/api/index-api)
  * [Quick start guide](https://typegoose.github.io/typegoose/guides/quick-start-guide/)
  ## Migrate to 6.0.0
  