Add more severe warning language to comment
@@ -33,7 +33,9 @@ lib_deps =
SignalK/SensESP
; This one has all merged PR's, but is not yet an official "release" version.
-; It is the branch called "master"
+; It is the branch called "master". This version is unstable and under continuous
+; development and will break without warning. Use it only if you want to
+; participate in SensESP development or need to test some yet unreleased feature.
; https://github.com/SignalK/SensESP
[espressif8266_base]
