add support for jaeger tracing (#229)

demos/weather_forecast_signoz/README.md

@@ -0,0 +1,29 @@
+# Function calling
+This demo shows how you can use Arch's core function calling capabilites.
+
+# Starting the demo
+1. Please make sure the [pre-requisites](https://github.com/katanemo/arch/?tab=readme-ov-file#prerequisites) are installed correctly
+2. Start Arch
+
+3.
+   ```sh
+   sh run_demo.sh
+   ```
+4. Navigate to http://localhost:18080/
+5. You can type in queries like "how is the weather?"
+
+# Observability
+Arch gateway publishes stats endpoint at http://localhost:19901/stats. In this demo we are using prometheus to pull stats from arch and we are using grafana to visalize the stats in dashboard. To see grafana dashboard follow instructions below,
+
+1. Start grafana and prometheus using following command
+   ```yaml
+   docker compose --profile monitoring up
+   ```
+1. Navigate to http://localhost:3000/ to open grafana UI (use admin/grafana as credentials)
+1. From grafana left nav click on dashboards and select "Intelligent Gateway Overview" to view arch gateway stats
+
+
+Here is a sample interaction,
+<img width="575" alt="image" src="https://github.com/user-attachments/assets/e0929490-3eb2-4130-ae87-a732aea4d059">
+
+1. Signoz UI: http://localhost:3301