moar guide

Signed-off-by: Matteo Collina <[email protected]>

CONTRIBUTING.md

@@ -38,12 +38,30 @@ Steps for downloading and setting up AI Warp for local development.
  is located at `ai-warp-app/platformatic.json`. **Note: this will be overwrited
  every time you generate the test app.**
 
- 8. Start the test app.
+ 8. Start the test app. From the `app-warp-ai` folder, run:
 
     ```bash
-    npm start
+    node ../dist/cli/start.js
     ```
 
+### Testing a local model with llama2
+
+To test a local model with with llama2, you can use the following to downloaded a tested model:
+
+```bash
+curl -L -O https://huggingface.co/TheBloke/Mistral-7B-Instruct-v0.2-GGUF/resolve/main/mistral-7b-instruct-v0.2.Q8_0.gguf
+```
+
+Then, in your `platformatic.json` file, add:
+
+```
+  "aiProvider": {
+    "llama2": {
+      "modelPath": "./mistral-7b-instruct-v0.2.Q8_0.gguf"
+    }
+  },
+```
+
 ## Important Notes
 
 * AI Warp needs to be rebuilt for any code change to take affect in your test