added JSDoc config.

jsdoc.json

@@ -0,0 +1,6 @@
+{
+    "plugins": [
+    	"plugins/markdown",
+    	"plugins/summarize"
+    ]
+}

package.json

@@ -40,6 +40,6 @@
     "styles": "stylus -u autoprefixer-stylus ./src/css/style.styl -o ./src/css/style.css",
     "styles:watch": "stylus -u autoprefixer-stylus -w ./src/css/style.styl -o ./src/css/style.css",
     "eject": "react-scripts eject",
-    "doc": "jsdoc -d code_docu -r -R README.md src/"
+    "doc": "jsdoc -c jsdoc.json -d code_docu -r -R README.md src/"
   }
 }