refactor: added README

README.md

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+# EchoLog
+
+EchoLog is a simple, modern homelab journal web app. It lets you document what you did each day, search and filter your entries, and review your homelab journey over time.
+
+## Features
+- Add daily journal entries with multi-line support
+- Edit and delete entries using a sleek modal interface
+- Search and filter entries by keyword or date
+- Pagination for easy browsing of large journals
+- Optional login for privacy (can be enabled via environment variable)
+- Beautiful dark mode UI powered by Tailwind CSS
+- MySQL database backend for reliable storage
+
+## How it works
+- Entries are saved to a MySQL database, with connection details set via environment variables
+- The web interface is built with Flask and styled with Tailwind CSS
+- All features are accessible from a single, responsive page
+- You can enable login protection and set credentials using environment variables
+
+## Docs
+For more information, see the [Docs](https://echolog.jdbnet.co.uk).