Added auto completion for git-note

plugins/git-note/git-note.plugin.zsh

@@ -0,0 +1,18 @@
+#compdef git
+__git_branch_names() {
+    local expl
+    declare -a branch_names
+    branch_names=(${${(f)"$(_call_program branchrefs git for-each-ref --format='"%(refname)"' refs/heads 2>/dev/null)"}#refs/heads/})
+    __git_command_successful || return
+    _wanted branch-names expl branch-name compadd $* - $branch_names
+}
+
+_git-note() {
+    _arguments '-b :branch-name:__git_branch_names [branch to attach note to]' \
+      '-l[list all branches with notes]' \
+      '-v[also show branches without notes]'
+}
+
+zstyle ':completion:*:*:git:*' user-commands \
+    note:'add a note to branch' \
+