Update README.md

Author: Carl-Firle

README.md

@@ -1,8 +1,8 @@
 # Introduction to Wolfram Mathematica \[German\]
-As a medical doctor and a researcher, I learned to conduct data analysis using Mathematica \[version 13.1\]. This tool is amazing.
-For friend called Rebekka, I give an introduction to the program in German.
+As a medical doctor and researcher, I learned to conduct data analysis using Mathematica \[version 13.1\]. This tool is amazing.
+For a friend called Rebekka, I give an introduction to the program in German.
 
 Therefor, you find 4 Mathematica-Notebook-Files \(.nb\). I included audio-files to explain the functioning.
-Just download the files, open them and start listening to my voice.
+Just download the .nb-files (and audio files), open them and start listening to my voice.
 
 Enjoy the discovery!