added .gif example to readme

Author: NathanCorral

README.md

@@ -64,6 +64,36 @@ Topics of type [AudioTranscript.msg](whisper_idl/msg/AudioTranscript.msg) on `/w
 
 Internally, the topic `/whisper/tokens` of type [WhisperTokens.msg](whisper_idl/msg/WhisperTokens.msg) is used to transfer the model output between nodes.
 
+## Example
+
+This example shows live transcription of first minute of the 6'th chapter in ***Harry Potter and the Philosopher's Stone*** from Audible:
+
+![harry_potter_sample](./doc/harry_potter_sample.gif)
+
+To run this example, first download the (~4MB) file using [Git Large File Storage (LFS)](https://git-lfs.com/):
+
+```shell
+git lfs pull
+```
+
+Then launch the bringup with the audio listener component disabled:
+
+```shell
+ros2 launch whisper_bringup replay.launch.py
+```
+
+Start the stream demo:
+
+```shell
+ros2 run whisper_demos stream
+```
+
+And play the sample:
+
+```shell
+ros2 bag play src/ros2_whisper/samples/HarryPotter_Book1_Chapter6/
+```
+
 ## Troubleshoot
 
 - Encoder inference time: https://github.com/ggerganov/whisper.cpp/issues/10#issuecomment-1302462960