Update README to include Cargo installation instructions

README.md

@@ -4,7 +4,14 @@ A Rust implementation of the [Macrosynergy Python Package](https://github.com/ma
 
 ## Build and install the Python package
 
+Install Cargo:
+
+```
+curl https://sh.rustup.rs -sSf | sh
+```
+
 Create a virtual environment:
+
 ```bash
 python -m venv .venv
 ```
@@ -21,6 +28,7 @@ uv pip install .
 ```
 
 Install from uv + Git (if authenticated):
+
 ```bash
 uv pip install git+https://github.com/Magnus167/msyrs@main
 ```