replace letters internal TODO list with list of suggested acts
replace letters internal TODO list with list of suggested acts

The Letters section seemed out of place -- it's a letters project TODO list which doesn't help people take part in the event. Replaced with a section suggesting concrete acts that people can do to participate (that includes contributing to letters if you're someone who has one).

Just an idea...
freebassel/freebassel.org,Fabricatorz/freebassel.org,Fabricatorz/freebassel.org,Fabricatorz/freebassel.org,freebassel/freebassel.org,freebassel/freebassel.org