Add fix for clang install of non m1 mac

README.md

@@ -105,5 +105,10 @@ To install a C++ compiler on Windows 10/11, follow these steps:
 3. Download the MinGW installer from the [MinGW website](https://sourceforge.net/projects/mingw/).
 4. Run the installer and select the `gcc` component.
 
+## Mac Running Intel 
+When running a Mac with inteel hardware (not M1), you may run into _clang: error: the clang compiler does not support '-march=native'_ during pip install. 
+
+If so set your archflags during pip install. eg: _ARCHFLAGS="-arch x86_64" pip3 install -r requirements.txt_
+
 # Disclaimer
 This is a test project to validate the feasibility of a fully private solution for question answering using LLMs and Vector embeddings. It is not production ready, and it is not meant to be used in production. The models selection is not optimized for performance, but for privacy; but it is possible to use different models and vectorstores to improve performance.