chore: add note for Mac m1 installation

Anchen · web-flow · commit 3718799b371b · 2023-05-15T20:46:59.000+10:00
diff --git a/README.md b/README.md
@@ -26,6 +26,12 @@ pip install llama-cpp-python
 The above command will attempt to install the package and build build `llama.cpp` from source.
 This is the recommended installation method as it ensures that `llama.cpp` is built with the available optimizations for your system.
 
+Note: If you are using Apple Silicon (M1) Mac, make sure you have installed a version of Python that supports arm64 architecture. For example:
+```
+wget https://github.com/conda-forge/miniforge/releases/latest/download/Miniforge3-MacOSX-arm64.sh
+bash Miniforge3-MacOSX-arm64.sh
+```
+Otherwise, while installing it will build the llama.ccp x86 version which will be 10x slower on Apple Silicon (M1) Mac.
 
 ### Installation with OpenBLAS / cuBLAS / CLBlast
 
