Update migrate_to_notebook7.md

Author: ismailshalan

docs/source/migrate_to_notebook7.md

@@ -64,7 +64,7 @@ Jupyter Ecosystem in the [JEP 79] and [team-compass note].
 :maxdepth: 2
 
 notebook_7_features.md
-```
+``` 
 
 ## Migration Guides