add onnxslim support

[inisis]

#198

Summary by Sourcery

Add support for onnxslim by updating the README.md with instructions on how to optimize the inswapper_128_fp16.onnx model.

Documentation:

• Update README.md to include instructions for optimizing the inswapper_128_fp16.onnx model using onnxslim.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request adds support for optimizing the 'inswapper_128_fp16.onnx' model using the 'onnxslim' tool. The changes are implemented by updating the README.md file to include instructions on how to use 'onnxslim' for model optimization.

File-Level Changes

Files	Changes
README.md	Updated the README.md file to include instructions for optimizing the 'inswapper_128_fp16.onnx' model using 'onnxslim'.

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[sourcery-ai]

Hey @inisis - I've reviewed your changes - here's some feedback:

Overall Comments:

• Consider adding a brief explanation of what onnxslim does and its benefits (e.g., reduced model size, faster inference).
• Include instructions on how to install onnxslim, or add it to the project's dependencies if it's not already included.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟡 Documentation: 1 issue found

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[sourcery-ai]

suggestion (documentation): Consider adding a brief explanation for the onnxslim command.

Adding a brief explanation or a link to the onnxslim documentation would help users who are not familiar with this tool.

Suggested change

	Then put those 2 files on the "**models**" folder, you can further optimize inswapper_128_fp16.onnx by using
	```
	onnxslim inswapper_128_fp16.onnx inswapper_128_fp16.onnx
	Then put those 2 files on the "**models**" folder. You can further optimize inswapper_128_fp16.onnx by using onnxslim:

onnxslim inswapper_128_fp16.onnx inswapper_128_fp16.onnx

onnxslim is a tool that reduces the size of ONNX models by removing unnecessary data. For more information, visit: https://github.com/onnx/optimizer