Update README

Author: amol-

README.rst

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+===================================
+TurboGears 2 DevTools
+===================================
+
+[![Build Status](https://img.shields.io/travis/TurboGears/tg2devtools.svg)](https://travis-ci.org/TurboGears/tg2devtools)
+[![PyPI version](https://img.shields.io/pypi/v/tg.devtools.svg)](https://pypi.org/project/tg.devtools)
+[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](LICENSE)
+
+TurboGears 2 DevTools is a command-line toolkit that streamlines the development of TurboGears2 applications. 
+Built on top of Gearbox, it helps you quickly scaffold new full-stack projects, generate extensions, 
+manage database migrations, and launch interactive shells—all from one unified interface.
+
+Key Features
+------------
+- **Quickstart**: Scaffold a new TurboGears2 project in minutes.
+- **Extension Generator**: Easily create and integrate TurboGears extensions.
+- **Database Migrations**: Run migration commands for SQLAlchemy and Alembic effortlessly.
+- **Interactive Shell**: Launch a shell preloaded with your app's context for rapid testing.
+- **Gearbox Integration**: Seamlessly work with Gearbox to serve and manage your applications.
+
+Getting Started
+---------------
+**Installation:**
+
+To install via pip, run:
+
+::
+
+    pip install tg.devtools
+
+For development and testing, install with extras:
+
+::
+
+    pip install -e .[testing]
+
+**Creating a New Project:**
+
+Use the quickstart command to generate a new TurboGears2 full-stack application:
+
+::
+
+    gearbox quickstart myproject
+
+This creates a ready-to-run project with a standard directory structure and preconfigured settings.
+
+Usage Examples
+--------------
+- **Generate a TG Extension:**
+
+  ::
+
+      gearbox tgext
+
+- **Run Database Migrations:**
+
+  ::
+
+      gearbox sqla-migrate
+      gearbox migrate
+
+- **Launch an Interactive Shell:**
+
+  ::
+
+      gearbox tgshell
+
+Resources
+---------
+- **TurboGears Website**: `http://www.turbogears.org`
+- **Documentation**: `https://turbogears.readthedocs.io`
+- **Community & Support**: Join our mailing list or Gitter chatroom.
+
+Contributing
+------------
+Contributions, bug reports, and feature requests are welcome! 
+
+License
+-------
+TurboGears 2 DevTools is licensed under the MIT License. 
+See the [LICENSE](LICENSE.txt) file for details.