Fixed README ToC

[vinkamath]

What does this PR do?

Fixes broken README ToC

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[Narsil]

I fail to see what's broken about it.

https://github.com/huggingface/text-generation-inference?tab=readme-ov-file#table-of-contents

Could you be more specific about what's broken ?

[vinkamath]

Could you be more specific about what's broken ?

The Run Mistral section has been changed to Run locally. We've added new sub-sections to Getting Started.

[Narsil]

LGTM, thanks.