Update README.md

README.md

@@ -1,11 +1,24 @@
 # Raycast-G4F (GPT4Free)
 
-Use the powerful GPT-4 models for FREE, on Raycast - no API Key required.
+Use the powerful GPT-4, Llama-3 and more models on Raycast, for FREE - no API Key required.
 
-Just install. You're all good to go!
+## Installation
+
+This extension is currently not available on the Raycast Extension store, but
+installation from source is extremely simple.
+
+1. Clone the repository / download source code from GitHub.
+2. Navigate to the directory.
+3. Run `npm run build` to build the extension.
+
+The extension, and its full set of commands, should then show up in your Raycast app.
+
+## License & Acknowledgements
+License: GPLv3. Full license is found in LICENSE.txt.
 
-## Acknowledgements
 The code base is derived from [Raycast Gemini](
 https://github.com/raycast/extensions/tree/main/extensions/raycast-gemini) by Evan Zhou.
 
-The main library used for generation is [g4f](https://github.com/VictorMRojas/g4f-ts).
+The main library used for generation is [g4f](https://github.com/VictorMRojas/g4f-ts).
+
+Some of the code in this repository was ported from the original [gpt4free](https://github.com/xtekky/gpt4free), written in Python.