Update README generated by plugin generator for CanJS 3.0

[phillipskevin]

The AMD Use section shows how to set up Can 2.3 and jQuery:

<script src="require.js"></script>
<script>
	require.config({
	    paths: {
	        "jquery": "node_modules/jquery/dist/jquery",
	        "can": "node_modules/canjs/dist/amd/can"
	    },
	    packages: [{
		    	name: '<%= name %>',
		    	location: 'node_modules/<%= name %>/dist/amd',
		    	main: 'lib/<%= name %>'
	    }]
	});
	require(["main-amd"], function(){});
</script>

This should be updated for CanJS 3.0.

[matthewp]

I think we should just remove that section, honestly, as setting up AMD with individual canjs packages is probably a huge pain.

[phillipskevin]

Yeah, I agree. It's probably very uncommon.