Updated README

README.md

-# Example Package
+# Example Package for SektorSim
 
-This is a simple example package. You can use
-[GitHub-flavored Markdown](https://guides.github.com/features/mastering-markdown/)
-to write your content.
+Proof of concept for SektorSim package.
+
+```python
+import sektorsim
+
+print(sektorsim.a(3)) # => 4
+print(sektorsim.b(5)) # => 7
+```
+
+[SektorSim project page](https://www.hft-stuttgart.de/forschung/projekte/aktuell/sektorsim3)