update dist -> demo

.gitignore

@@ -62,4 +62,4 @@ typings/
 
 example/local-data
 example/bundle
-dist/
+demo/

package.json

@@ -22,7 +22,7 @@
   ],
   "scripts": {
     "start": "concurrently \"parcel watch example/*.html --out-dir ./example/bundle/ --public-url . --no-cache\" \"static-server\"",
-    "build": "parcel build example/*.html --out-dir ./dist/ --public-url . --no-cache",
+    "build": "parcel build example/*.html --out-dir ./demo/ --public-url . --no-cache",
     "lint": "eslint \"src/**/*.js\" \"test/**/*.js\" && tsc -p tsconfig.json --noEmit",
     "test": "jest"
   },