Tweaks

Author: boisgera

README.md

@@ -69,10 +69,7 @@
 
 The course materials are also available as Jupyter notebooks. To execute and edit them:
 
- 0. **Install the pixi package manager** 
- 
-    [Installation instructions](https://pixi.sh/latest/)
-
+ 0. **Install the pixi package manager** ([Instructions](https://pixi.sh/latest/))
 
  1. **Download and extract the [zip archive](https://github.com/boisgera/control-engineering-with-python/archive/refs/heads/gh-pages.zip)** 
     of the gh-pages branch.