Updated Compiling WLED (markdown)

Compiling-WLED.md

@@ -57,7 +57,8 @@ ESP8266:
 ESP8266-07 (External Antenna):
 - Variants have 512kB or 1MB flash
 - Be sure to use DOUT mode when flashing
-- Flash Size 512kB/1MB (NO SPIFFS)
+- Flash Size 1MB (128k SPIFFS)
+- 512kB variant no longer compatible
 
 ESP-07s (External Antenna):
 - Variant have 4MB flash