Document whitespace control

[trombonehero]

Thanks very much for ACE: it's much nicer using these templates in Hugo than the default Go ones.

When constructing paragraphs, the existing syntax documentation doesn't show how to insert whitespace between elements. For instance, this:

p
    | This is a
    b very
    | important sentence.

will be rendered as:

This is averyimportant sentence.

If I change the ACE input a little bit:

p
  | This is a 
  b very
  |  important sentence.

i.e., with an extra space at the end of "This is a" and at the beginning of "important sentence", then I get the text rendered the way I was hoping for:

This is a very important sentence.

So, could you add this hint to the syntax documentation? I found this out by looking at what Jade does (pipe + two spaces), trying that in ACE and then working backwards. :)