By Chris Sheridan Peter May resigned from SheridanHoops.com yesterday after ESPN told him he could not write for me and continue being a part-time contributor to ESPN-Boston. Within an hour after May’s first and only column was posted on this site, ESPN e-mailed May — who is neither an ESPN staff member nor one of their legions of independent contractors, but merely a freelancer — to inform him of their displeasure. They ordered him to make a choice, and I completely understand why he chose