initial release

ggml/CONTRIBUTING.md

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+Please use [llama.cpp's contribution guidelines](https://github.com/ggml-org/llama.cpp/blob/master/CONTRIBUTING.md) for this project.
+
+*For changes to the core `ggml` library (including to the CMake build system), please open a PR in https://github.com/ggml-org/llama.cpp. Doing so will make your PR more visible, better tested and more likely to be reviewed.*