Update image link

Author: Guen Prawiroatmodjo

README.md

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 Visualize quantum circuits with error propagation in a Jupyter widget.
 
-<img src="./_static/images/bit_flip_in_jupyter.png" alt="jupyter notebook cell with quantum circuit diagram output" width=400>
+<img src="https://i.imgur.com/LVu7H1l.png" alt="jupyter notebook cell with quantum circuit diagram output" width=400>
 
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