Update pages/Usecase_description.md

pages/Usecase_description.md

+To create such a page, export the jupyter notebook as markdown and add to the file.
+
+
+# My Notebook example
+
+```python
+import h5py
+import pandas as pd
+```
+
+## some markdown
+something more to say
+
+
+```python
+a = 1
+b = a*2
+print (b)
+```
+
+    2
+
+
+
+```python
+
+```