wrong L<> pod. L<name|link>

fixes t/98_pod.t
1..29
ok 1 - POD test for blib/lib/DBM/Deep.pm (no pod)
not ok 2 - POD test for blib/lib/DBM/Deep.pod
  Failed test 'POD test for blib/lib/DBM/Deep.pod'
  at /usr/local/lib/perl5/site_perl/5.18.0/Test/Pod.pm line 186.
blib/lib/DBM/Deep.pod (52): alternative text '/db_version' contains non-escaped | or /
better .gitignore