Initial routes webpage

README.md

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+# Routes
+
+A small static webpage for saving and sharing Google Maps route links.
+
+## Features
+
+- Add routes with name and Google Maps link (mandatory)
+- Optional date, description, and picture URL
+- Click route names or **Open map** to open saved Google Maps links
+- Edit, remove, share, or copy route links
+- Data is stored locally in the browser with `localStorage`
+- Simple secret gate before the app opens
+
+Open `index.html` in a browser to use it.
+
+## Secret
+
+The current demo secret is `change-me`. Before publishing, replace `AUTH_SECRET_HASH` in `app.js` with the SHA-256 hash of your real secret. This is a simple client-side gate, not strong server-side security.
+
+```sh
+printf 'your-secret' | sha256sum
+```