Update README.md

Author: ShilpaG813

README.md

@@ -163,6 +163,25 @@ Contributions are welcome. Please read the [contributing guidelines](./.github/C
 * [Filter Reference](./docs/filter-reference.md)
 * [Maintainers’ Guide](./docs/maintainers.md)
 
+## DevDocs Quick Usage Cheatsheet
+
+Below are some helpful shortcuts and usage tips that are not immediately obvious to new users:
+
+- Press **/** or **Ctrl + K** to instantly focus the search bar.
+- Press **?** to open DevDocs’ built-in help overlay.
+- Press **↑ / ↓** to navigate search results without touching the mouse.
+- Press **Enter** to open the highlighted search result.
+- Press **Backspace** to go back to the previously viewed page.
+- Press **Shift + S** to toggle the sidebar visibility.
+- Press **A** to open the list of all installed documentation sets.
+- Press **Esc** to close popups, overlays, and search.
+- Use the **⚡ Offline Mode toggle** to download docs for offline use.
+- You can pin specific documentation sets to the sidebar for quicker access.
+
+These shortcuts make DevDocs faster to navigate and more efficient for daily use.
+These shortcuts make DevDocs faster to navigate and more efficient for daily use.
+
+
 ## Related Projects
 
 Made something cool? Feel free to open a PR to add a new row to this table! You might want to discover new projects via https://github.com/topics/devdocs.