Added Sample implementation section

Author: MarcoPon

bip-MarcoPon-BlockchainURI.mediawiki

@@ -98,6 +98,10 @@ Blockchain explorers in turn will simply offer to handle the blockchain: URI, th
 
 Users get the convenience of using always their preferred explorer, which can be especially handy on mobile devices, where juggling with cut&paste is far from ideal.
 
+== Sample implementation ==
+
+[https://github.com/MarcoPon/blockchain-exploration Demo Blockchain: URI handler on GitHub]
+
 ==Acknowledgements==
 Thanks to Btc Drak for suggesting to provide support for different networks.
 Thanks to Jorge Timon for the idea of using genesis blocks hashes to identify them.