In the cl.texi docs for the `loop' macro I had to read a few times
before noticing the way hash values are accessed.  I think showing as
items and adding an example would make it easier for the newcomer :-).

2010-07-09  Kevin Ryde  <user42@zip.com.au>

	* cl.texi (For Clauses): @items for hash-values and key-bindings
	to make them more visible when skimming.  Add examples of `using'
	clause to them, examples being clearer than a description in
	words.