Add getting help section in README.

Author: jonathanrocher

README.md

@@ -1,7 +1,7 @@
 # Sharing your scientific tools: from a script to a desktop application
 This repository contains a GUI building and packaging tutorial using the 
 [Enthought Tool Suite](https://docs.enthought.com/ets/) accepted for the 
-SciPy2022 conference.
+[SciPy2022 conference](https://www.scipy2022.scipy.org/).
 
 ## Tutorial summary
 
@@ -45,6 +45,21 @@ example from https://www.python.org/,
 pip install pandas matplotlib traits traitsui scikits-image
 ```
 
+## Getting help
+### During the tutorial
+During the tutorial, don't hesitate to ask for help: 
+- ask questions if something isn't clear,
+- there will be a number of developers in the room who can help unblock you.
+
+### After the tutorial
+- This tutorial was recorded and can be watched [here]().
+- You can ask questions about any of the ETS packages on the ETS mailing list:
+  https://groups.google.com/g/ets-users .
+- Each of the other packages has its own dedicated mailing list where questions 
+  can be posted.
+
+
+
 ## Contributing
 ### Code structure