README.md is too long and complicated

[pumpkinhasapatch]

I have been trying to improve the translation project README document by reducing the amount of text people have to read and giving more detail to the important parts.

I feel like it's too long and confusing, and doesn't have any screenshots showing users what the translated game actually looks like. Some longer documentation and development notes could also be moved to the new project wiki.

GitHub has a guide on what should go in READMEs and what is better suited for wikis. For READMEs they say:

A README is often the first item a visitor will see when visiting your repository. README files typically include information on:

• What the project does
• Why the project is useful
• How users can get started with the project
• Where users can get help with your project
• Who maintains and contributes to the project