Update markdown.mdx based on issue #242

Author: kgowru

fern/products/docs/pages/writing-content/markdown.mdx

@@ -0,0 +1,16 @@
+# Disable image zoom
+
+Images in Fern Docs can be zoomed by default. To disable zoom for an image, add the `noZoom` property to the HTML `img` tag:
+
+```html
+<img src="../assets/hero.png" alt="Logo" noZoom />
+```
+
+You can also add `no-zoom: true` as a meta tag to disable zoom for all images on a page:
+
+```yaml
+---
+title: My Page
+no-zoom: true
+---
+```