Add link to keycap replacement charts

README.md

@@ -20,6 +20,7 @@
 
 ## References
 *References for additional information about the Kinesis keyboard*
+-   [Keycap Replacement Charts](https://deskthority.net/wiki/Kinesis_Contoured#Keycaps) - by way of Deskthority
 -   [@kinesisergo on Twitter](https://twitter.com/kinesisergo) - Kinesis Ergo on Twitter
 -   [Kinesis Advantage - Everything you want to know but are afraid to task!](https://geekhack.org/index.php?topic=8110.0) - Detailed geekhack thread
 -   [Kinesis Contoured on Deskthority](https://deskthority.net/wiki/Kinesis_Contoured) - Deskthority article
@@ -27,6 +28,7 @@
 -   [Mechanical Aspects of Kinesis Advantage keys](https://www.fysh.org/~zefram/keyboard/advantage_keys_mech.txt) - Details on the physical and mechanical makeup of the keys
 -   [Official Kinesis Manuals (all models)](https://www.kinesis-ergo.com/support/technical-support/manuals-drivers/) - Manuals for all models of Kinesis keyboards and accessories
 
+
 ## Shopping
 -  [Kinesis Keyboards](https://www.kinesis-ergo.com/products/) - Kinesis keyboards website
 -  [Seahorse SE-720 - Waterproof Case](http://www.seahorsecases.net/seahorse-se-720.html) - Case that may be used for your keyboard, as recommended above