Update README.md

change info regarding possible malfunctions

FRITZ!Box DVB-C List to CSV/README.md

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 ## FRITZ!Box DVB-C List to CSV
 - With the script mentioned, it is possible to create a CSV file with the station names and their frequencies from a cable Fritzbox, with which you can further process the data yourself (e.g. as a data source for a pivot table in Microsoft Excel) in order to create your own station list from it.
 - The script is available as a Bash script for Linux-based distros and also for Windows as PowerShell.
-- **Subject to malfunctions.**
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+- Basically the scripts work more or less but **there is a possibility that the scripts might not work properly**.