readme : update tool list (#8209)

* Added gppm to Tool list in README

* Update README.md

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Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

README.md

@@ -218,6 +218,7 @@ Unless otherwise noted these projects are open-source with permissive licensing:
 **Tools:**
 
 - [akx/ggify](https://github.com/akx/ggify) – download PyTorch models from HuggingFace Hub and convert them to GGML
+[crashr/gppm](https://github.com/crashr/gppm) – launch llama.cpp instances utilizing NVIDIA Tesla P40 or P100 GPUs with reduced idle power consumption
 
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