remove trailing space

layers/mountain_peak/mountain_peak.yaml

@@ -8,7 +8,7 @@ layer:
     name: The OSM [`name`](http://wiki.openstreetmap.org/wiki/Key:name) value of the peak.
     name_en: English name `name:en` if available, otherwise `name`.
     name_de: German name `name:de` if available, otherwise `name` or `name:en`.
-    class: 
+    class:
       description: |
         Use the **class** to differentiate between mountain peak and volcano.
       values: