jupyter config

config.json

#################### edit.json ##################
{
  "Editor": {
    "codemirror_options": {
      "indentUnit": 2,
      "vimMode": false,
      "keyMap": "default"
    }
  },
  "load_extensions": {
    "codefolding/edit": true
  }
}

######################### notebook.json ########################
{
  "load_extensions": {
    "nbextensions_configurator/config_menu/main": true,
    "collapsible_headings/main": true,
    "codefolding/main": true,
    "execute_time/ExecuteTime": true,
    "scratchpad/main": true,
    "toc2/main": true
  },
  "CodeCell": {
    "cm_config": {
      "indentUnit": 2
    }
  },
  "keys": {
    "command": {
      "bind": {
        "alt-r": "jupyter-notebook:confirm-restart-kernel",
        "alt-o": "jupyter-notebook:restart-kernel-and-clear-output",
        "alt-1": "jupyter-notebook:clear-cell-output",
        "alt-c": "jupyter-notebook:clear-all-cells-output"
      }
    }
  },
  "Cell": {
    "cm_config": {
      "lineNumbers": true
    }
  }
}