Added USB connectivity setting

Added USB connectivity setting necessary for some of the Linux distribution mentioned in OttoDIY#38 (comment)
gitaroktato · Dec 16, 2020 · 637618c · 637618c
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commit 637618c
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diff --git a/README.md b/README.md
@@ -44,6 +44,12 @@ rm -rf package-lock.json
 ```
 
 ### USB connection
+First, make sure that your user is part of the `dialout` group if it is necessary in your Linux distribution. You can do this with the following command:
+```bash
+sudo usermod -a -G dialout youruser
+```
+where **youruser** is the user name you are running the program with.
+
 Testing the port of arudino with `Board: Arduino Nano; Processor: ATMega328P; Port:/dev/ttyUSB0`
 ```
 ls -l /dev/ttyUSB*