Sort tablet support table

Author: spbnick

README.md

@@ -5,13 +5,13 @@ This is a Linux kernel driver for Huion graphics tablets.
 
 Model support is as follows:
 
+    580     untested    likely works
+    H420    tested      works
     H610    tested      works
     H690    tested      works
-    580     untested    likely works
     K58     tested      works
     W58     untested    likely works
     W58L    tested      works
-    H420    tested      works
     other   untested    can work
 
 This driver should support more models than the hid-huion driver present in