added docker to Doom

emacs/.config/doom/config.org

@@ -266,7 +266,7 @@ We start by simply defining the standard headers used by the three files. These
        ;;collab            ; buffers with friends
        (debugger +lsp)          ; FIXME stepping through code, to help you add bugs
        ;;direnv
-       ;;docker
+       docker
        ;;editorconfig      ; let someone else argue about tabs vs spaces
        ;;ein               ; tame Jupyter notebooks with emacs
        (eval +overlay)     ; run code, run (also, repls)