docs: initial pass

docs/asides.md

@@ -0,0 +1,16 @@
+---
+title: Asides
+description: Asides provide an easy way to represent content that is only indirectly related to the article's main content. 
+---
+
+## Asides
+
+Asides provide an easy way to represent content that is only indirectly related to the article's main content. Where supported, MyST will attempt to display an `aside` _as close as possible_ but separately from the main article, such as in the side-margin. 
+
+````{myst}
+The main article contains main-article text!
+
+```{aside}
+This is an aside. It is not entirely relevant to the main article.
+```
+````