Updated SubGhzD (markdown)

SubGhzD.md

@@ -1 +1,15 @@
-No content
+![image](https://github.com/user-attachments/assets/37807945-cfc5-4608-9d97-9f1e8d858962)
+
+# Introduction
+
+This is a little clone of the flipper zero subghzd application.
+IF it can decode anything on the frequency your are listening to, it will display it.
+
+# Controls
+
+- Frequency selector: use rotary encoder or click on it to pop frequency key pad.
+- AMP: 0 OFF, 1 ON (beware of strong signals).
+- LNA: use rotary encoder to change Low Noise Amplification.
+- VGA: use rotary encoder to change Variable Gain Amplification.
+- Clear: click to clear the displayed list.
+- Log: hit the checkbox to save the results in a log file.