Generated RST file missing blank line after section titles

[baoilleach]

Using PLIP from conda, I see:

**Salt Bridges**
+-------+---------+----------+----------------+-----------+-------------+--------------+------+-----------+-------------+--------------+-------------------------+-------------------------+
etc.

in the generated RST file. Running this through docutils' rst2html.py doesn't make a table. However, it works fine if I add a blank line as so:

**Salt Bridges**

+-------+---------+----------+----------------+-----------+-------------+--------------+------+-----------+-------------+--------------+-------------------------+-------------------------+
etc.