Add install instructions and requirements file

Author: tomsrocket

README.md

@@ -22,6 +22,21 @@ How does it work?
 
 ```
 
+## Install
+
+```bash
+# Virtuelles Environment mit dem Namen "venv" initialisieren falls noch kein venv-Unterverzeichnis da ist:
+python3 -m venv venv
+
+# Venv fürs aktuelle Projekt aktivieren
+source venv/bin/activate
+
+# Requirements installieren
+pip3 install -r requirements.txt
+
+python3 generateSitzplan.py
+```
+
 ## Local development instructions
 
 It is easier to fill out the seating information if you get "live feedback". That is why you should do the following:

requirements.txt

@@ -0,0 +1,7 @@
+certifi==2024.12.14
+charset-normalizer==3.4.1
+idna==3.10
+Jinja2==3.1.5
+MarkupSafe==3.0.2
+requests==2.32.3
+urllib3==2.3.0