update

Author: LadyBluenotes

src/routes/reference/rendering/render.mdx

@@ -55,9 +55,9 @@ Dispose function for the mounted root.
 
 ## Behavior
 
-- `render` creates a new root and appends its output to `element`.
+- `render` is a browser/client API and is unsupported in the server bundle. It creates a new root and appends its output to `element`. When `element` is `document`, it evaluates `code()` directly instead of using DOM insertion.
 - The first argument must be a function so Solid can establish the root before evaluating JSX.
-- The returned function disposes the root and removes the rendered content.
+- The returned function disposes the root and clears the mount container's content, so mounting into an empty container is safest.
 
 ## Examples