improve readme clarity

Author: wise-king-sullyman

README.mdx

@@ -33,7 +33,7 @@ Any static assets, like images, can be placed in the `public/` directory.
 
 To define the markdown schema this project uses a typescript based schema known as [Zod](https://zod.dev). Details of how this is integratred into Astro can be found in Astros documentation on [content creation using Zod](https://docs.astro.build/en/guides/content-collections/#defining-datatypes-with-zod).
 
-Note: When running in dev mode locally, API endpoints are not available on a clean repo until a build has been done
+Note: When running in dev mode locally on a clean repository, API endpoints will not be available until you run `npm run build` to generate the API index.
 ### 🧞 Commands
 
 All commands are run from the root of the project, from a terminal: