Fix syntax error in samples (#65)

* Remove trailing comma and regenerate plot

Co-authored-by: Ilya Muradyan <ilya.muradyan@jetbrains.com>

Author: breandan

samples/LetsPlot.ipynb

@@ -10,7 +10,7 @@
     {
      "data": {
       "text/html": [
-       "   <div id=\"Vv7uvh\"></div>\n",
+       "   <div id=\"bJuM8r\"></div>\n",
        "   <script type=\"text/javascript\">\n",
        "       if(!window.letsPlotCallQueue) {\n",
        "           window.letsPlotCallQueue = [];\n",
@@ -35,9 +35,9 @@
        "               var div = document.createElement(\"div\");\n",
        "               div.style.color = 'darkred';\n",
        "               div.textContent = 'Error loading Lets-Plot JS';\n",
-       "               document.getElementById(\"Vv7uvh\").appendChild(div);\n",
+       "               document.getElementById(\"bJuM8r\").appendChild(div);\n",
        "           };\n",
-       "           var e = document.getElementById(\"Vv7uvh\");\n",
+       "           var e = document.getElementById(\"bJuM8r\");\n",
        "           e.appendChild(script);\n",
        "       })();\n",
        "   </script>"
@@ -68,18 +68,10 @@
    "execution_count": 3,
    "metadata": {},
    "outputs": [
-    {
-     "data": {
-      "text/plain": []
-     },
-     "execution_count": 3,
-     "metadata": {},
-     "output_type": "execute_result"
-    },
     {
      "data": {
       "text/html": [
-       "   <div id=\"NeS9rD\"></div>\n",
+       "   <div id=\"xPJT0p\"></div>\n",
        "   <script type=\"text/javascript\">\n",
        "       (function() {\n",
        "           var plotSpec={\n",
@@ -104,21 +96,22 @@
        "'geom':\"bar\"\n",
        "}]\n",
        "};\n",
-       "           var plotContainer = document.getElementById(\"NeS9rD\");\n",
+       "           var plotContainer = document.getElementById(\"xPJT0p\");\n",
        "           window.letsPlotCall(function() {{\n",
        "               LetsPlot.buildPlotFromProcessedSpecs(plotSpec, -1, -1, plotContainer);\n",
        "           }});\n",
        "       })();    \n",
        "   </script>"
       ]
      },
+     "execution_count": 3,
      "metadata": {},
-     "output_type": "display_data"
+     "output_type": "execute_result"
     }
    ],
    "source": [
     "val layer = geom_bar { \n",
-    "    x = \"cat1\",  \n",
+    "    x = \"cat1\"\n",
     "    fill = \"cat2\"\n",
     "}\n",
     "\n",
@@ -141,19 +134,22 @@
   },
   "language_info": {
    "codemirror_mode": "text/x-kotlin",
-   "file_extension": "kt",
-   "name": "kotlin"
+   "file_extension": ".kt",
+   "mimetype": "text/x-kotlin",
+   "name": "kotlin",
+   "pygments_lexer": "kotlin",
+   "version": "1.4.0-dev-7568"
   },
   "pycharm": {
    "stem_cell": {
     "cell_type": "raw",
-    "source": [],
     "metadata": {
      "collapsed": false
-    }
+    },
+    "source": []
    }
   }
  },
  "nbformat": 4,
  "nbformat_minor": 4
-}
+}