Style issues for conventions page

A documentation comment came in that highlights a weird situation with 
the web version of the documentation.  Check out 
http://www.postgresql.org/docs/current/static/notation.html for a 
moment.  In the PDF documentation, this example looks just like it reads.

There are a few problems with the web version though:

-The word italics in "emphasized in italics" is actually bold.  The 
source code for that is <emphasis>italics</>.

-"emphasized in bold face (example)" shows an example that is neither 
bold or italics.  Source for that one is (<emphasis 
role="bold"><literal>example</></>)

I don't know that anything in the source needs to change, but something 
in the HTML generation pipeline seems off here.

-- 
Greg Smith   2ndQuadrant US    greg@2ndQuadrant.com   Baltimore, MD
PostgreSQL Training, Services, and 24x7 Support www.2ndQuadrant.com