looked at the git history [1] and found that the first commit by someone
other than the original author (Cyrille Rossant) was in 2013, so started the
"team" copyright term from that year
fixed wording on the license to replace "border" with "copyright holder" as
this may have been a holdover from another license file
.md
to.txt
[1]: git log --pretty="format:%an %ad"
Fixes https://github.com/rossant/ipycache/issues/68