added section about removing old release files

git-svn-id: https://svn.apache.org/repos/asf/vcl/site/trunk@1604880 13f79535-47bb-0310-9956-ffa450edef68
1 file changed
tree: 7f0d67115156580660093d0b95300d82620c31bc
  1. content/
  2. img/
  3. lib/
  4. templates/