docs(storybook): rename docs to story

i'd like to use docs as demo site directory

.storybook/config.js

@@ -9,7 +9,7 @@ import { withBackgrounds } from '@storybook/addon-backgrounds';
 import '../scss/nes.scss'; // eslint-disable-line import/no-unresolved
 
 // automatically import all files ending in *.stories.js
-const req = require.context('../docs', true, /.stories.js$/);
+const req = require.context('../story', true, /.stories.js$/);
 function loadStories() {
   req.keys().forEach(filename => req(filename));
 }

package.json

@@ -3,7 +3,7 @@
   "description": "NES.css is NES-style CSS Framework.",
   "scripts": {
     "watch": "npm run build:sass -- --watch",
-    "//": "Build task",
+    "// Build task": "",
     "build": "run-p build:core build:main",
     "build:core": "npm run build:sass-core && npm run build:autoprefix-core && npm run build:cleancss-core",
     "build:main": "npm run build:sass && npm run build:autoprefix && npm run build:cleancss",
@@ -11,15 +11,15 @@
     "prebuild:stylelint": "npm run stylelint -- --fix",
     "prebuild:clean": "rimraf css",
     "postbuild": "npm run build:storybook",
-    "//": "For nes.css",
+    "// For nes.css": "",
     "build:sass": "node-sass --output-style expanded --source-map true --functions scripts/scssFunctions.js scss/nes.scss css/nes.css",
     "build:autoprefix": "postcss --use autoprefixer --map false --output css/nes.css css/nes.css",
     "build:cleancss": "cleancss -o css/nes.min.css css/nes.css",
-    "//": "For nes-core.css",
+    "// For nes-core.css": "",
     "build:sass-core": "node-sass --output-style expanded --source-map true --functions scripts/scssFunctions.js scss/nes-core.scss css/nes-core.css",
     "build:autoprefix-core": "postcss --use autoprefixer --map false --output css/nes-core.css css/nes-core.css",
     "build:cleancss-core": "cleancss -o css/nes-core.min.css css/nes-core.css",
-    "//": "Misc",
+    "// Misc": "",
     "stylelint": "stylelint scss/**/*.scss",
     "storybook": "start-storybook -p 6006",
     "build:storybook": "build-storybook",
@@ -111,7 +111,7 @@
       "npm run postbuild"
     ],
     "*.js": [
-      "eslint '.storybook/**/*.js' 'docs/**/*.js'"
+      "eslint '.storybook/**/*.js' 'story/**/*.js'"
     ]
   },
   "prettier": {
@@ -148,14 +148,14 @@
       "scss/at-rule-no-unknown": true
     },
     "ignoreFiles": [
-      "demo/lib/*"
+      "docs/*"
     ]
   },
   "eslintConfig": {
     "extends": "airbnb-base"
   },
   "eslintIgnore": [
-    "demo/lib/*"
+    "docs/*"
   ],
   "config": {
     "commitizen": {