More Tables
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A table with multi-paragraph multicolumn cells:

+----------+--------------+---------------------------------+-----------+
| test     | **bold hd**  | multicolumn 1                   | *emph hd* |
|          |              |                                 |           |
|          |              | With a second paragraph         |           |
+----------+--------------+--------------+--------+---------+-----------+
| multicolumn 2           | cell         | cell   | cell    | cell      |
|                         |              |        |         |           |
| With a second paragraph |              |        |         |           |
+----------+--------------+--------------+--------+---------+-----------+
| cell     | multicolumn 3 (one line,    | cell   | cell    | cell      |
|          | but very very very very     |        |         |           |
|          | very looooong)              |        |         |           |
+----------+--------------+--------------+--------+---------+-----------+
| cell     | cell         | cell         | Short multicolumn 4          |
+----------+--------------+--------------+------------------------------+

Tables with multi-paragraph multirow cells currently fail due to a LaTeX
limitation (see https://sourceforge.net/p/docutils/bugs/225/).

A table with multirow header:


        +------------+-------------------+
        | XXX        | Variable Summary  |
        |            +-------------------+
        |            | Description       |
        +============+===================+
        | multicollumn cell              |
        +--------------------------------+
