Go install instructions fail

[taciturnaxolotl]

When you run the current go get github.com/bemasher/rtlamr-collect then you get this as the output.

	'go get' is no longer supported outside a module.
	To build and install a command, use 'go install' with a version,
	like 'go install example.com/cmd@latest'
	For more information, see https://golang.org/doc/go-get-install-deprecation
	or run 'go help get' or 'go help install'. ```