🗒 Update README.md

.idea/codeStyles/Project.xml

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       </indentOptions>
     </codeStyleSettings>
     <codeStyleSettings language="JavaScript">
+      <option name="RIGHT_MARGIN" value="999" />
       <option name="BLANK_LINES_AFTER_IMPORTS" value="2" />
       <option name="BLANK_LINES_AROUND_CLASS" value="2" />
       <option name="ELSE_ON_NEW_LINE" value="true" />

README.md

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 # ![Appuntiweb](public/opengraph.png)
 
-A React app I use to prepare for university exams!
+A website containing the material I made to prepare for university exams!
 
 ## Contributing
 
@@ -26,3 +26,23 @@ npm run start
 To update the published website, just push the commit to the `main` branch.
 
 [Render](https://render.com/) will do the rest.
+
+Pull Requests are previewed through Render as well: when the deploy is complete, a bot will comment with the preview link.
+
+## Structure
+
+The website is a [Single Page App][1] created with [`create-react-app`][2] using [`bluelib-react`][3] for the styling.
+
+[1]: https://en.wikipedia.org/wiki/Single-page_application
+[2]: https://create-react-app.dev/
+[3]: https://github.com/RYGhub/bluelib-react
+
+### Temporary components
+
+Some Components are temporarily implemented here pending introduction in [`bluelib`][5]: they are located in `/src/components/`.
+
+[5]: https://github.com/RYGhub/bluelib
+
+### Per-page components
+
+Some Components specific to a certain page are implemented in the page's own directory: for example, `/routes/Gestinfo/components/`.