Add section to always use explicit indexing on the rhs

[t-b]

	make/O/N=3 lhs, rhs
	lhs = p
	rhs = 10 + p
	print lhs
	print rhs
	lhs[inf] = rhs

this is not good code. rhs is using implicit [p] here, see DisplayHelpTopic "Mismatched Waves" but that is suprising. It get's even worse for multidimensional waves, see DisplayHelpTopic "Multidimensional Wave Assignment" the "Important note".