Update readonlyMiddleware.mdx

Author: xaviergonz

apps/site/docs/actionMiddlewares/readonlyMiddleware.mdx

@@ -5,7 +5,7 @@ slug: /action-middlewares/readonly-middleware
 
 ## Overview
 
-Attaches an action middleware that will throw when any action is started over the node or any of the child nodes, thus effectively making the subtree readonly. \* It will return an object with a `dispose` function to remove the middleware and an `allowWrite` function that will allow actions to be started inside the provided code block.
+Attaches an action middleware that will throw when any action is started over the node or any of the child nodes, thus effectively making the subtree readonly. It will return an object with a `dispose` function to remove the middleware and an `allowWrite` function that will allow actions to be started inside the provided code block.
 
 Example: