docs(examples): fix yandex example

Author: elesdoar

examples/0000-viewer.html

@@ -26,10 +26,12 @@
         <link rel="stylesheet" href="//api.tiles.mapbox.com/mapbox-gl-js/v0.11.2/mapbox-gl.css"/>
 
         <script src="//maps.google.com/maps/api/js?key=AIzaSyBazU_OOTAZRmxQfaiirM1EDPLCiUSTlrY"></script>
+        <script src="//api-maps.yandex.ru/2.0/?load=package.map&lang=en-US" type="text/javascript"></script>
         <script src="../bower_components/leaflet/dist/leaflet.js"></script>
         <script src="../bower_components/proj4/dist/proj4.js"></script>
         <script src="../bower_components/proj4leaflet/src/proj4leaflet.js"></script>
         <script src="../bower_components/leaflet-plugins/layer/tile/Google.js"></script>
+        <script src="../bower_components/leaflet-plugins/layer/tile/Yandex.js"></script>
         <script src="../bower_components/esri-leaflet/dist/esri-leaflet.js"></script>
         <script src="../bower_components/webgl-heatmap-leaflet/js/webgl-heatmap.js"></script>
         <script src="../bower_components/webgl-heatmap-leaflet/js/webgl-heatmap-leaflet.js"></script>

examples/0228-layers-yandex-example.html

@@ -5,7 +5,7 @@
     <meta content="utf-8" http-equiv="encoding">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-    <script src="http://api-maps.yandex.ru/2.0/?load=package.map&lang=ru-RU" type="text/javascript"></script>
+    <script src="//api-maps.yandex.ru/2.0/?load=package.map&lang=en-US" type="text/javascript"></script>
     <script src="../bower_components/angular/angular.min.js"></script>
     <script src="../bower_components/leaflet/dist/leaflet.js"></script>
     <script src="../bower_components/angular-simple-logger/dist/angular-simple-logger.js"></script>