Update README: add installation instructions for Linux and macOS using Cargo

README.md

@@ -70,6 +70,19 @@ The OWLEN interface features a clean, multi-panel layout with vim-inspired navig
   (defaults to `http://localhost:11434`)
 - A terminal that supports 256 colors
 
+### Installation from Source on Linux and macOS
+
+```bash
+git clone https://somegit.dev/Owlibou/owlen.git
+cd owlen
+cargo install --path crates/owlen-cli
+```
+
+**Note**: Make sure `~/.cargo/bin` is in your PATH to run the installed binary:
+```bash
+export PATH="$HOME/.cargo/bin:$PATH"
+```
+
 ### Clone and Build
 
 ```bash