These are errors that codespell doesn't fix automatically because there is more than one fix.
The following command now gives an empty list of possible fixes, as expected:
find . -name '*.md' -exec codespell --ignore-words-list=cach,doas,ehr,hist,inout,lits,nd,ot,verry --write-changes --summary {} \+
Add support for 3D models.
Remove vessels from table if not heard from in last 10 minutes.
Add columns in table for vessel length, time last position & message
were received and number of messages received.
Add context menu.
