Other XML Considerations

Lower Case is Encouraged

It's not a requirement, but conventions are leaning toward lower case or camelCase tag and attribute names.

Enclose Everything in a Tag

Because of the way the SiteLinker editor, formatter, and parser work, your text should always be inside at least one tag in the editor. Thus, the following works well:

<h1>Title<h1>
<p>Rambling text here...</p>

But this text:

<h1>Title<h1>
Rambling text here...

will lead to seemingly random formatting issues in your source text, mostly extra linefeeds in unexpected places.