[DOCS] Suggestion for the tables in documentation

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/9.6/static/functions-string.html
Description:

Hello,

The documentation contains a lot of tables with long function names that do
not wrap. This leads to a lot of strings breaking out of table cells.

There are ways to reformat these tables, for example, by turning 3+ column
tables into a series of 2 column tables whereby the original columns are
turned into rows.

For example:

Function | Return Type | Description | Example | Result
(with rows of overlapping data below that in PDF and very wide screens with
horizontal scrollbars in HTML)

would become

Function    | ...
Return Type | ...
Description | ...
Example     | ...
Result      | ...

(empty line followed by next row as a table)

This could surely be automated. The documentation would be so much easier to
use.

Just a suggestion.

Best regards,
Frederik De Vos