Reword install from requirements.txt

README.md

@@ -32,13 +32,11 @@ Since this repository is built only for example purposes, we publish a Python pa
 pip install -i https://test.pypi.org/simple/ democorp-airflow
 ```
 
-Or when installing from a requirements.txt file:
+Or define the package in a requirements.txt file and install using `pip install -r requirements.txt`:
 
-```text
+```
 --extra-index-url https://test.pypi.org/simple
 democorp_airflow
-
-# Install with "pip install -r requirements.txt" 
 ```
 
 ## Using the library