Add Docker Support for Git-Hound

[ErdemOzgen]

Description

This PR introduces Docker support for running Git-Hound, a tool for discovering exposed Git repositories and other sensitive information. The addition of Dockerfile and related documentation (README) makes it easier and more secure for users to deploy Git-Hound in various environments.

Changes

• Dockerfile: A new Dockerfile has been added to build a Docker image for Git-Hound. This file includes instructions for setting up a Go environment, cloning and building Git-Hound, and configuring necessary volumes for configuration and input files.

• README Update: The README has been updated with comprehensive instructions on how to build and use the Docker container. It includes guidance on mounting the config.yaml and input files, ensuring users can easily set up and run Git-Hound with their configurations.

Benefits

• Portability: With Docker, users can run Git-Hound in any environment that supports Docker, which enhances the tool's portability and ease of use.
• Ease of Setup: The Docker container abstracts the setup process, reducing the steps required to get Git-Hound up and running.
• Consistency: Docker ensures a consistent environment for every user, mitigating the "it works on my machine" problem.
• Security: By using Docker volumes, sensitive information like GitHub credentials in config.yaml is handled more securely, as it remains outside the Docker image and can be managed independently.

Testing

• The Docker image has been built and tested locally, confirming that Git-Hound runs successfully with the provided configuration.
• Instructions in the README have been followed to ensure they are clear and accurate.

Request

I request a review of these changes and welcome any feedback or suggestions. Upon approval, this enhancement will allow Git-Hound users to leverage the benefits of Docker for a more streamlined and secure experience.

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