Improve README with promotional details

Author: vizzdoom

README.md

@@ -1,6 +1,34 @@
 # SQLMap Command Builder
 
-## Project website: https://vizzdoom.github.io/sqlmap-command-builder/
+**Take control of SQLMap with a single page app.** This interactive builder lets you craft advanced [SQLMap](https://github.com/sqlmapproject/sqlmap) commands without memorising dozens of CLI switches. The whole project is pure HTML, CSS and JavaScript, so it works completely offline and keeps your tests private.
+
+## Why is this tool handy?
+
+- **Quick templates** – Start from built-in scenarios such as GET or POST tests and a Burp request import.
+- **Full option coverage** – Toggle SQLMap's flags from clearly arranged tabs.
+- **Tamper scripts** – Enable obfuscation techniques with a single click.
+- **Save/Load configs** – Keep your favourite setups and share them easily.
+- **Works offline** – Perfect for restricted environments or on‑site engagements.
+
+Whether you are new to SQLMap or a seasoned operator, the builder saves you from endless command‑line tweaking and lets you focus on the actual test.
+
+## Project website
+
+<https://vizzdoom.github.io/sqlmap-command-builder/>
+
+## Building
+
+A Python helper script is provided to inline all assets and produce a single distributable `index.html` file. Run:
+
+```bash
+python3 build.py
+```
+
+The resulting file can be opened directly in your browser or served from any web server. The same built file is also deployed to the project's GitLab Pages.
+
+## Usage
+
+Open `index.html` and select the options you need. The generator will compose the appropriate SQLMap command line.
+
+**Use responsibly — only test systems you have permission to audit.**
 
-Interactive command line generator for conducting advanced SQLMap pentests.
-This project works locally with pure HTML/JS/CSS (no data exchanged to any server).