updated variable name to match basemap provider

content/boilerplate.md

@@ -122,4 +122,4 @@ var OpenStreetMap_BZH = L.tileLayer('https://tile.openstreetmap.bzh/br/{z}/{x}/{
 ```
 The first line is our map variable. A JavaScript variable is something that holds values, and our <code>mymap</code> variable holds values for the initial starting view location and zoom level of the loading map.    
 
-The other variable <code>Stamen_Terrain</code> hold values for the map tile layer that we are using for our base layer including where the tiles are coming from, a limit on the max and min zoom level, and attribution.   
+The other variable <code>OpenStreetMap_BZH</code> hold values for the map tile layer that we are using for our base layer including where the tiles are coming from, a limit on the max and min zoom level, and attribution.