Update README

Author: EZForever

README.md

@@ -1,2 +1,28 @@
 # llama.cpp-static
-Static builds of llama.cpp (Currently only amd64 server builds are available)
+Your daily, minimal build of llama.cpp. [Also available on Docker Hub.](https://hub.docker.com/r/ezforever/llama.cpp-static)
+
+Source code: <https://github.com/ggerganov/llama.cpp>  
+Built from: <https://github.com/EZForever/llama.cpp-static>
+
+## Usage
+
+Please refer to [llama.cpp docker guide](https://github.com/ggerganov/llama.cpp/blob/master/README.md#docker) and [server README](https://github.com/ggerganov/llama.cpp/tree/master/examples/server).
+
+## Tag format
+
+**tl;dr:** Use `server-ssl-avx2` if you don't know what you're doing.
+
+Server images are tagged in the format of `server-<ssl>-<avx>`.
+
+`<ssl>` is one of the following:
+
+- `nossl`: Minimal build with no SSL/TLS capability. 
+- `ssl`: Built with OpenSSL (`LLAMA_SERVER_SSL=ON`), thus supports `--ssl-key-file` and `--ssl-cert-file`.
+
+`<avx>` is one of the following:
+
+- `noavx`: All AVX-related optimizations are disabled. Do not use this build unless you are working around some known bug, or running LLMs on a 10-year-old potato.
+- `avx`: (Only) AVX instruction set is enabled. Might be useful if you are using some old CPUs that don't support AVX2.
+- `avx2`: AVX2 instruction set is enabled. This build should support most modern/recent CPUs with reasonable performance.
+- `avx512`: AVX512 and AVX512-VNNI instruction sets are enabled. Currently only some high-end or server-grade CPUs support these instruction sets, so check your hardware specs before using this build.
+