doc: Add PropertyChanged signal to stk-api

diff --git a/doc/stk-api.txt b/doc/stk-api.txt
index aa2fc2f..2e863a9 100644 (file)
--- a/doc/stk-api.txt
+++ b/doc/stk-api.txt
@@ -50,6 +50,11 @@ Methods              dict GetProperties()
                                         [service].Error.NotFound
                                         [service].Error.NotAuthorized
 
+Signals                PropertyChanged(string property, variant value)
+
+                       Signal is emitted whenever a property has changed.
+                       The new value is passed as the signal argument.
+
 Properties     string IdleText
 
                        Contains the text to be used when the home screen is