This should be changed to a section heading of some sort (and not all-caps).  Also, it might be a bit confusing to use the word "properties" when you don't mean python properties.  Perhaps:
```
Configurable Items
------------------
```
or
```
Configurable Items
^^^^^^^^^^^^^^^^^^
```
if you want a slightly smaller heading.

Similarly for all ``voscatalog.py`` and ``server/validate.py`` below.