fix: typo

Author: samuv

docs/toolhive/guides-ui/playground.mdx

@@ -16,7 +16,7 @@ behavior before deploying MCP servers to production environments.
 <ThemedImage
   alt='ToolHive Playground initial interface'
   sources={{
-    light: useBaseUrl('/img/toolhive/toolhive-ui-playground-start-ligh.webp'),
+    light: useBaseUrl('/img/toolhive/toolhive-ui-playground-start-light.webp'),
     dark: useBaseUrl('/img/toolhive/toolhive-ui-playground-start-dark.webp'),
   }}
   title='ToolHive Playground initial interface'