Add discord + usage

official_verification.md

@@ -1,5 +1,9 @@
 # Official Verification
 
+**Usage:** These links and other unique identifiers should be used to determine whether a source is officially from the QRL or the QRL foundation. 
+
+If you have concerns about services purporting to be related to the QRL or its affiliates please contact security@theqrl.org
+
 ## Website links
 
 - https://theqrl.org (and all subdomains)
@@ -9,6 +13,7 @@
 
 - Facebook: https://facebook.com/theqrl
 - Youtube: https://youtube.com/c/QRLedger
+- Discord: https://discord.com/channels/357604137204056065/
 - Twitter: https://twitter.com/qrledger
 - LinkedIn: https://www.linkedin.com/company/the-quantum-resistant-ledger/
 - Reddit: https://www.reddit.com/r/QRL