Restructure content

CONTRIBUTING.md

@@ -16,11 +16,6 @@ If you feel Rust 101 should cover a topic that is currently not covered, you can
 State the main goal and the learning objectives of the module, as well as the covered topics and proposed exercises.
 In case an addition proposal is accepted, a PR with the proposed changes referring to the relevant issue can be opened.
 
-Please use `slides/format-lectures.md` as a format for the module's lecture slides.
-The exercise description should be added in a new book chapter, by adding an entry to `exercises/book/SUMMARY.md`, pointing to a new markdown file.
-Any exercise scaffolding can be added as a new Cargo project in `exercises/[your-module]/[exercise-name]`.
-Prefix the exercise scaffolding project folders with the exercise number.
-
 Have a look at the structure of the current slides and exercises to get a better understanding of how modules are organized.
 
 ## Trying it out on your students