Add production build script

.gitignore

 elm-stuff
 node_modules
-elm.js
\ No newline at end of file
+elm.js
+dist
\ No newline at end of file

package.json

@@ -2,6 +2,9 @@
     "name": "elm-calculator",
     "version": "1.0.0",
     "description": "An elm starter template repository",
+    "scripts": {
+        "build": "mkdir -p dist && elm make src/Main.elm --optimize --output=dist/elm.js && cp index.html dist && cp style.css dist"
+    },
     "keywords": [
         "elm",
         "template repository"