Update README.md (dhylands#38)

clach04 · web-flow · commit 4376476d7753 · 2021-08-26T11:38:06.000-07:00
Link to online character editor
diff --git a/README.md b/README.md
@@ -261,3 +261,5 @@ battery5 = bytearray([0x0E,0x1B,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F])  # 83%
 battery6 = bytearray([0x0E,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F])  # 100% Full
 battery7 = bytearray([0x0E,0x1F,0x1B,0x1B,0x1B,0x1F,0x1B,0x1F])  # ! Error
 ```
+
+An online editor for creating customer characters is available online at https://clach04.github.io/lcdchargen/ (source code available from https://github.com/clach04/lcdchargen/tree/python)
