[bdsim BUG] Link to editor is dead

[fhg-isi]

The link

https://github.com/petercorke/bdsim/blob/master/bdedit-the-graphical-editing-tool

from the readme

https://github.com/petercorke/bdsim/blob/master/README.md

does not work.

[fhg-isi]

https://github.com/petercorke/bdsim/blob/master/bdsim/bdedit/README.md
might be the right link.