Update bio-alignment-chart.md

add `no_display=true` to iframed cell

Author: smallstepman

doc/python/bio-alignment-chart.md

@@ -48,7 +48,7 @@ fig.show()
 
 ## Alignment Chart in dash_bio
 
-```python
+```python no_display=true
 from IPython.display import IFrame
 snippet_url = 'https://dash-gallery.plotly.host/python-docs-dash-snippets/'
 IFrame(snippet_url + 'bio-alignmentchart', width='100%', height=630)