#355 Render: fix examples that switch namespaces.

[Lucian Smith]

A couple examples in the render specifiation switch from using the 'render:' namespace to using the default namespace. It should be consistent, and use just one or the other.

Page 19:
<render:style render:id="style_1" render:rolelist="Parameter">
<g> ... </g>
</render:style>

Page 20:
<render:style render:id="style_1" render:typelist="SPECIESGLYPH SPECIESREFERENCEGLYPH">
<g> ... </g>
</render:style>

[Lucian Smith]

Moved to https://github.com/sbmlteam/sbml-specifications/issues/353