chore: update readme

README.md

@@ -1,12 +1,37 @@
 # Sloppee
-## W.I.P
+### (W.I.P)
 
-### To run:
+## Installation
+
+### Install LLVM
+This can be done by installing LLVM from the official website:
+https://releases.llvm.org/download.html
+
+You can also install LLVM from your package manager.
+For example, on Arch:
+```bash
+pacman -S llvm
+```
+
+### Install Rust:
+
+```bash
+curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
 ```
-cargo run -- <filename> [OPTIONS]
+
+## Usage
+
+### Build a binary:
+```bash
+cargo build
 ```
 
-### to run tests:
+### Run the compiler:
+```bash
+sloppee [COMMAND] <file> [OPTIONS]
 ```
+
+### Run tests:
+```bash
 cargo test
 ```