Updated Compiling WLED (markdown)

Compiling-WLED.md

@@ -19,6 +19,8 @@ Please remove _BOTH_ the `;` and the whitespace behind it to correctly uncomment
 For most ESP8266 boards, the `d1_mini` environment is best.  
 4. In the blue bottom bar, hit the checkmark to compile WLED or the arrow pointing right to compile and upload!  
 
+![picture guide](https://i.imgur.com/mZYo4KJ.jpg)
+
 Success! 
  
 If you get one of these two errors, hit the checkmark icon once again to compile and that time the code should build without problems!