Update TeachingHub.md, Documentation/teachinghub-authenticator-manual.png files

TeachingHub.md

@@ -94,18 +94,43 @@ You need to download one of these apps:
 - or any other (search `2fa apps` and you will find plenty)
 
 I recommend using your phone and an app there, as this is the most secure way. And with you phone you can scan the qr code, which looks like this:
+
 <img src="Documentation/teachinghub-qrcode.png" width="300px">
 
 When you scan to your Authenticator App, it will automatically get the details (username, Secret) required to generate every 30 seconds a Time-based One Time  Password (TOTP). Like this:
 
 ![](Documentation/teachinghub-authenticator.png)
 
+If you want to use a desktop or other app that might not scan QR codes, you can fill in the details manually like this:
+- Provider: `TeachingHub`
+- Account: `[user]` your username, here `monkey`
+- Token or Secret or Hash: `1A2B3C4D5E6F7G8H` is the secret from your email.
+
+![](Documentation/teachinghub-authenticator-manual.png)
+
 The combination of username, password and TOTP needs to be used to sign in:
 
 ![](Documentation/teachinghublogin.png)
 
 This sounds all really complicated, but I promise this will be easier from time to time. Don't forget that this for our all security and your contribution is appreciated! Thanks.
 
+Now you are ready to go to the teaching hub and sign in:
+
+[Teaching Hub](https://srvx1.img.univie.ac.at)
+
+
+# Teaching Hub Notebooks and Kernels
+
+Currently there are several Notebooks with different Kernels (Python kernels) installed at SRVX1. Look at the logos, if SRVX1 is in there then you will have access to these notebooks and kernels. If SRVX2 or SRVX8 are in the logo you might not have access as this is for researchers.
+
+![](Documentation/teachinghubnotebooks.png)
+
+As you can see it is also possible to launch a terminal inside the TeachingHub and you will find you files from your home directory there. 
+
+It might be that your course has a separate Notebook/Kernel for you, with installed packages and dependencies required for this specific course. However, these Notebooks/Kernels are only available during these lectures and  might be removed in the future. So be aware of that. Note that you can easily change a kernel in your notebook. So no need to delete, copy or do anything. Your data/notebook information is safe.
+
+![](Documentation/teachinghubnotebooks_kernels.png)
+