Add thank-you note for blueagain from libera.chat

src/bitcoinity_reader.cpp

@@ -72,6 +72,10 @@ namespace {
 	}
 
 	void init_bitcoinity (WebsocketReader& ws, std::string_view exchange, std::string_view currency) {
+		//thanks to blueagain from #javascript libera.chat for helping figuring
+		//out the websocket address and the correct sequence of messages to
+		//initiate the communication properly.
+		//https://github.com/terrablue
 		{
 			ws.write(R"({"topic":"all","event":"phx_join","payload":{},"ref":"1"})");
 			auto resp = to_bitcoinity_message(ws.read());