Potentially source iterm2 integration

dotfiles/zshrc

@@ -184,6 +184,8 @@ if [[ $- == *i* ]] ; then
   if command -v direnv >/dev/null 2>&1 ; then
     eval "$(direnv hook zsh)"
   fi
+  test -e "${HOME}/.iterm2_shell_integration.zsh" && \
+    source "${HOME}/.iterm2_shell_integration.zsh" || true
 fi  # End interactive-only block
 
 # In case ack is named ack-grep