add link to LED patterns image in user manual

docs/vtx_user_manual.md

@@ -22,14 +22,7 @@ Working status indicator light.
 
 - Specific modes are represented with patterns of long (1s) and short (1/4s) pulses, within a 4s timeframe
 
-|Pattern|Meaning|
-|:-------------------------------------|:----------------------------------------|
-|short --- short                       |Camera lost (check camera and cabling)   |
-|short --- short --- short             |Heat protection                          | 
-|short --- short --- short --- short   |RF chip(dm6300) failure                  |
-|long --- short                        |0mW mode                                 |
-|long --- short --- short              |Pit mode (1mW)                           |
-|ON solid                              |VTX operation normal                     |
+<img src="https://raw.githubusercontent.com/hd-zero/hdzero-vtx-docs/main/site/img/LED_Patterns.png" style="width:100">
 
 Note the first three in the list, are error cases and are checked ahead of any others, and will be displayed if in force.
 This means for example, that if the vtx is in heat protection mode, setting the board to 0mW will not be apparent.