Update README.md

Author: matthieuantoine

README.md

@@ -9,4 +9,5 @@ This repository provides everything you need to use a LR1110 evaluation kit.
 The Wiki will give you all the information about this evaluation kit:
 
  - [Software packages](https://github.com/Lora-net/lr1110_evk/wiki/Software-packages)
+ - [Demonstration examples](https://github.com/Lora-net/lr1110_evk/wiki/Demonstration-examples)
  - [Updater tool](https://github.com/Lora-net/lr1110_evk/wiki/Updater-tool)