to get started make a file called slyde.xml, and put in the following text:
<presentation title="My First Slyde Presentation">
</presentation>
Slyde is made out of XML blocks denoted like this <tag>...</tag>. They are an abstract way to represent data in this case a presentation. Google XML to learn more if you're not familiar. The first tag you'll need to use is the <presentation> ... </presentation> tag.
Now in the presentation block you can add slides as you please. Add one and optionally give it a title:
<presentation title="My First Slyde Presentation">
<slide title="Why you should use Slyde">
</slide>
</presentation>
Slide blocks should always be at the 2nd level. To add text to a slide add 3rd level blocks like <text>...</text>, <point>....</point>, or <image/>:
<presentation title="My First Slyde Presentation">
<slide title="Why you should use Slyde">
<point>It is super fast and easy to make slides</point>
<point>The animations are gorgeous!</point>
<point>Recipient only needs a browser to open it</point>
</slide>
</presentation>
To style text add markup. For more information about how markup works in Slyde see the page on markup
<presentation title="My First Slyde Presentation" by="Tygo van den Hurk">
<slide title="Why you should use Slyde">
<point>It is super **fast and easy** to make slides</point>
<point>The animations are **gorgeous**!</point>
<point>Recipient only needs a browser to open it</point>
</slide>
</presentation>
This would output the following fully animated presentation:

You can optionally add presentor notes using XML comments <!-- ... -->:
<presentation title="My First Slyde Presentation" by="Tygo van den Hurk">
<slide title="Why you should use Slyde">
<!-- These are my slide notes in case I forget what to say -->
<point>It is super **fast and easy** to make slides</point>
<point>The animations are **gorgeous**!</point>
<point>Recipient only needs a browser to open it</point>
</slide>
</presentation>