Add jquery cdn url to fix rendering in nbviewer (#39)

Author: sbrunk

almond/src/main/scala/plotly/Almond.scala

@@ -28,7 +28,8 @@ object Almond {
         """require.config({
           |  paths: {
           |    d3: 'https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.17/d3.min',
-          |    plotly: 'https://cdn.plot.ly/plotly-1.12.0.min'
+          |    plotly: 'https://cdn.plot.ly/plotly-1.12.0.min',
+          |    jquery: 'https://code.jquery.com/jquery-3.3.1.min'
           |  },
           |
           |  shim: {