Add common mistakes to the docs

[LukasBommes]

We noted that users make some common mistakes when configuring the pipeline. It would be useful to have a section on that in the docs.

common mistakes:

• unsuitable cluster definitions
  • linear clusters (violating the requirement of moving in a plane)
  • multiple flights over the same row(s)
  • forgetting to cut out battery-swaps, etc.
• using non-inzterpolated GPS
• shuffled GPS