Fixed #7935 -- Corrected typo in template docs, plus slightly clarified the...

**New in Django development version**

If you need to loop over a list of lists, you can unpack the values

in eachs sub-list into a set of known names. For example, if your context contains

a list of (x,y) coordinates called ``points``, you could use the following

to output the list of points::

in each sub-list into individual variables. For example, if your context

contains a list of (x,y) coordinates called ``points``, you could use the

following to output the list of points::

    {% for x, y in points %}

        There is a point at {{ x }},{{ y }}