🐛 Fix missing exports

Author: apertureless

src/index.js

@@ -6,6 +6,7 @@ import Pie from './BaseCharts/Pie'
 import PolarArea from './BaseCharts/PolarArea'
 import Radar from './BaseCharts/Radar'
 import Bubble from './BaseCharts/Bubble'
+import Scatter from './BaseCharts/Scatter'
 import mixins from './mixins/index.js'
 import npmCfg from '../package.json'
 
@@ -19,6 +20,7 @@ const VueCharts = {
   PolarArea,
   Radar,
   Bubble,
+  Scatter,
   mixins
 }
 
@@ -34,5 +36,6 @@ export {
   PolarArea,
   Radar,
   Bubble,
+  Scatter,
   mixins
 }