Add better separators

README.md

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 If you like the project, :star: it on Github, and share it to your SD friends!
 
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 ## Install
 
 ### AUTOMATIC1111 stable diffusion webui
 
 Like for any other AUTOMATIC1111 webui extension, go to the `Extension` tab, then into `Install from URL`, and paste this repo's URL (https://github.com/LilianBoulard/prompt-forge). Finally, click `Install`, reload the UI and you're ready to roll!
 
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 ## The configuration file
 
 To start forging prompts, you need a **configuration file**: this document, written in [the `toml` format](https://toml.io/), specifies the keywords and parameters for your prompts.
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 **That's it for the basics!**
 
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 ### Advanced usage
 
 A great deal of effort has also been put into providing the most sensible defaults, so that configuration files can be as short as possible.