docs: introduce gpustack and gguf-parser (#8873)

* readme: introduce gpustack

GPUStack is an open-source GPU cluster manager for running large
language models, which uses llama.cpp as the backend.

Signed-off-by: thxCode <thxcode0824@gmail.com>

* readme: introduce gguf-parser

GGUF Parser is a tool to review/check the GGUF file and estimate the
memory usage without downloading the whole model.

Signed-off-by: thxCode <thxcode0824@gmail.com>

---------

Signed-off-by: thxCode <thxcode0824@gmail.com>

README.md

@@ -186,10 +186,12 @@ Unless otherwise noted these projects are open-source with permissive licensing:
 
 - [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
+- [gpustack/gguf-parser](https://github.com/gpustack/gguf-parser-go/tree/main/cmd/gguf-parser) - review/check the GGUF file and estimate the memory usage
 
 **Infrastructure:**
 
 - [Paddler](https://github.com/distantmagic/paddler) - Stateful load balancer custom-tailored for llama.cpp
+- [GPUStack](https://github.com/gpustack/gpustack) - Manage GPU clusters for running LLMs
 
 **Games:**
 - [Lucy's Labyrinth](https://github.com/MorganRO8/Lucys_Labyrinth) - A simple maze game where agents controlled by an AI model will try to trick you.