Updated Scanner (markdown)

Scanner.md

@@ -4,7 +4,7 @@ The scanner will stop into any frequency carrying a signal strong enough. You ca
 
 For better scanning precision, once a frequency with a powerful enough signal is found, the scanner will analyze it for some extra milliseconds, in order to confirm that the signal is still present (and not a spurious peak).
 
-# Big Numbers Frequency
+## Big Numbers Frequency
 The big numbers display will show the frequency value currently being scanned, using the following color code criteria:
 
 * GREY scanning
@@ -12,11 +12,22 @@ The big numbers display will show the frequency value currently being scanned, u
 * GREEN found a strong enough signal
 
 
-# Frequencies to scan
+### Frequencies to scan
 
 The application parses `FREQMAN\SCANNER.TXT`  by default. You can use the Frequency manager app (Tools -> **Freq managern**) to add more entries to that list. 
 
 Alternatively, you are able to manually input a scanning range "on the fly" by keying in START and END frequencies, while adjusting the STEP selector. 
 
-# Modulation Mode
+### Modulation Mode
 You can select between **AM** (DSB / USB / LSB), **NFM** and **WFM** modulation modes.
+
+## Bottom Buttons
+
+There are six buttons at the bottom of the screen, useful for the following tasks:
+
+* Manually Pause / Resume the scanning
+* Change scanning direction
+* Jump into the MIC TX RX app (2-WAY Radio)
+* Jump into the RX->AUDIO app (for further analysis)
+* Delete the current frequency on display from the (temporary) scanning memory
+* Add the current frequency into the SCANNER.TXT file