[README] describe python example execution within build tree

README.md

@@ -278,10 +278,10 @@ make install_python
 ```
 
 If this finished successfully, you can, for instance, run the python implementation of
-example1 by heading to the examples folder (in the source tree):
+example1 by changing to the examples folder:
 
 ```sh
-cd ../appl/example1
+cd appl/example1
 python3 example1.py
 ```