README: Add a link to @h4rm0n1c's comments regarding using DMD2 on ES…

…P8266 (#7)

README.md

@@ -29,6 +29,13 @@ More documentation will be produced before the library reaches final release rat
 
 Feel free to ask [questions on the forum](http://forum.freetronics.com/viewforum.php?f=26) if things don't work.
 
+# ESP8266 Support
+
+Thanks to @h4rm0n1c there is support for DMD2 on ESP8266 using the Arduino environment. See [this comment](https://github.com/freetronics/DMD2/pull/7#issue-97282971) for an explanation of using DMD2 on ESP8266.
+
+Freetronics is unable to guarantee support for DMD2 on ESP8266, but we will try and help if we can.
+
+
 # About the Makefiles
 
 You'll notice the examples directory contains some files named `Makefile`. You can ignore these if you are using the Arduino IDE.