Removed additional, optional and slide material links at bottom

Ravi Srinivasan

2019-01-14 26420c8d1b60c7c124e48a6ecfc101f5caf5ad06

Removed additional, optional and slide material links at bottom

 1-the-manual-menace/README.md

@@ -609,14 +609,14 @@

_____ -->

## Additional Reading
<!-- ## Additional Reading
> List of links and other reading material that might be of use for the exercise

## Slide links

- TBD
- TBD
- TBD
- TBD -->

<!-- - [Intro](https://docs.google.com/presentation/d/1LsfAkH8GfIhulEoy_yd-usWBfDHnZEyQdNvYeTmAg4A/)
- [Wrap-up](https://docs.google.com/presentation/d/1cfyJ6SHddZNbM61oz67r870rLYVKY335zGclXN2uLMY/)