Update warm-planes-swim.md

.changeset/warm-planes-swim.md

@@ -6,6 +6,6 @@ Adds remote image optimization in Markdown
 
 Previously, an internal remark plugin only looked for images in `![]()` syntax that referred to a relative file path. This meant that only local images stored in `src/` were passed through to an internal rehype plugin that would transform them for later processing by Astro's image service.
 
-Now, the plugins recognize and transform both local and remote images using this syntax.
+Now, the plugins recognize and transform both local and remote images using this syntax. Only [authorized remote images specified in your config](https://docs.astro.build/en/guides/images/#authorizing-remote-images) are transformed; remote images from other sources will not be processed.
 
 While not configurable at this time, this process outputs two separate metadata fields (`localImagePaths` and `remoteImagePaths`) which allow for the possibility of controlling the behavior of each type of image separately in the future.