* Change copyright year from 2020 to 2021
Signed-off-by: Tilman Vatteroth <tilman.vatteroth@tu-dortmund.de>
* Change copyright year in jetbrains copyright template
Signed-off-by: Tilman Vatteroth <tilman.vatteroth@tu-dortmund.de>
Massive improvement of render performance by:
- replacing the codimd-line-marker with an in-memory map
- an observation of the changed markdown code to identify changed lines
- a unique react-key calculation