Refactor katas

[michaelin]

• Split up the 01-pods-deployments exercise into two, since that is how it is being used in the Introduction to Kubernetes course. This leads to renaming all the
• Cleanup formatting

[michaelin]

The 1.2 - 1.4 sections have been copied to a new exercise 02. I just forgot to remove them from exercise 01. They've been removed now.

The reasoning was that we always have to explain rather clearly that they have to stop before 1.2. Since the kata is always being split into two exercises, it makes sense to split the kata.

And yes, I have to update all the slides with the new exercise numbers. I just didn't want to do that until this change is ready to be merged.

[sofusalbertsen]

@michaelin well done, merge when you have made the apropriate changes to the master slideshow :)

[michaelin]

I've updated references to the exercises in https://docs.google.com/presentation/d/1je3slhBio9antzpAKCHr25nyXSd_daNNryo_mnkcRWU/edit?usp=sharing

[zanderhavgaard]

nice work guys :tada: :rocket: :metal: