Correcting and adding CTA interactive workflows

Correcting CTA gammapy example workflow and adding two others

Changes could maybe be done on the fly.

But I will add more stuff soon.

esap/esap/esap_ida_config.yaml

@@ -91,7 +91,7 @@
     description: CTA gammapy Example
     url: https://git.astron.nl/astron-sdc/escape-wp5/workflows/cta-example
     ref: master
-    filepath: gammapy-tutorials/notebooks-0.18.2/cta.ipynb
+    filepath: analysis.ipynb
     workflowtype: notebook
     keywords: jupyter-notebook
     author: