I was browsing coinsecrets.org and I came up with this type of tx https://blockchain.info/tx/84566b60c48fcf3098c58864c341c9da63aecaeda7002143d717cc5aea78d9b8
The addresses start with "bc1q"
I just wanted to know how to construct these type of transactions?
How to create OP_RETURN transactions in electrum?