update readme with new demo stopping setup

demos/weather_forecast/README.md

@@ -54,3 +54,29 @@ If using Jaeger, navigate to http://localhost:16686/ to open Jaeger UI
 If using Signoz, navigate to http://localhost:3301/ to open Signoz UI
 
 If using Logfire, navigate to your logfire dashboard that you got the write key from to view the dashboard
+
+### Stopping Demo
+
+1. To shut down the Jaeger demo, run the following command:
+
+```sh
+sh run_demo.sh down jaeger
+```
+
+or run:
+
+```sh
+sh run_demo.sh down
+```
+
+2. To shut down the Logfire demo, run the following command:
+
+```sh
+sh run_demo.sh down logfire
+```
+
+3. To shut down the Signoz demo, run the following command:
+
+```sh
+sh run_demo.sh down signoz
+```