[Docs] The document editor deserves a better sample

[wwalc]

Related: #894

The current sample for the document editor looks a bit silly and definitely does not show the potential of this editor. The header where 4 words cannot fit a single line. The squeezed content, which when printed on a paper would look silly. The styling of that sample should be reasonable for a document which is intended to be printed on a A4 paper, where most of the documents are later printed on.

[oleq]

Related issue #894.

[Reinmar]

This issue starts from the same comment ;D

[Reinmar]

This page has 19cm:

And fits Umberto's layout. 21cm starts overlapping with the license footer.

[Reinmar]

I tried to make other examples wider too, but it looked bad in their case.

[Reinmar]

We did all we could for now. Closing, unless someone have some ideas.