Update README.md

README.md

@@ -7,9 +7,12 @@ Knot is the bridge between old-school MIDI gear like synthesizers, groove boxes,
 You can find more info on the [website](https://intech.studio/shop/knot) or in the [Knot - Starter's Guide](https://docs.intech.studio/guides/guide/knot-start).
 
 
-### Nightly Build here 
+### Nightly Firmware version
+
+The nightly firmware is an early release version of the stable release. As it is an early version, some issues could still persist. In the case of issues, please denote the usage of a nightly firmware in the issue report.
 
 [Nightly Release](https://github.com/intechstudio/knot/raw/preview/Preview/Firmware/knot_esp32_nightly.uf2)
+
 ### Knot features
 
 - Standalone USB MIDI Host, works with Grid and any MIDI class compliant USB controller