update readme w note/img instructions

README.md

@@ -33,6 +33,18 @@ The website code is organized with a top-level `docs` folder that contains all t
 
 Documentation pages are located in the `/docs` folder in the root directory of the project. The docs pages are all markdown files. When you want to add a new page, add the new file in the appropriate folder in the `/docs` page. `index.md` files will be the default page for a directory, and `{pagename}.md` will define subpages for a directory.
 
+Notes in documentation pages are highlighted in pale blue boxes. To add a note, wrap the note text in `<Note>` tage as follows:
+
+```markdown
+<Note> text to include in note</Note>
+```
+
+Images should be saved to `public/images/docs` and included in the markdown as follows:
+
+```markdown
+![alt-text](/images/docs/image-title.png)
+```
+
 After adding a page, you will also need to list it in `/src/data/documentation-links.yaml`.  This file defines the documentation structure which you will see on the left sidebar in the documentation pages.
 
 
@@ -50,11 +62,6 @@ Open [http://localhost:3000](http://localhost:3000) with your browser to see the
 
 You can start editing the page by modifying `pages/index.tsx`. The page auto-updates as you edit the file.
 
-[API routes](https://nextjs.org/docs/api-routes/introduction) can be accessed on [http://localhost:3000/api/hello](http://localhost:3000/api/hello). This endpoint can be edited in `pages/api/hello.ts`.
-
-The `pages/api` directory is mapped to `/api/*`. Files in this directory are treated as [API routes](https://nextjs.org/docs/api-routes/introduction) instead of React pages.
-
-
 ### Review and merge
 
 PRs will be reviewed by the website maintainers and merged if they improve the website. For substantial changes it is best to reach out to the team by raising a GH issue for discussion first.