basic styling for lesson modules + code highlighting

views/mixins/_lesson.pug

@@ -4,14 +4,14 @@ include _lessonModuleImage
 
 mixin lesson(lesson)
   .lesson
-    h1.lesson__tilte #{lesson.fields.title}
+    h2.lesson__tilte #{lesson.fields.title}
     div.lesson__shortDescription !{helpers.markdown(lesson.fields.description)}
     img.lesson__image(src=`${lesson.fields.image.fields.file.url}` alt=`${lesson.fields.image.fields.title}`)
     each module in lesson.fields.modules
-     case module.sys.contentType.sys.id 
+     case module.sys.contentType.sys.id
       when 'lessonModuleCodeSnippets'
         +lessonModuleCodeSnippet(module)
       when 'lessonModuleCopy'
         +lessonModuleCopy(module)
       when 'lessonModuleImage'
-        +lessonModuleImage(module)
+        +lessonModuleImage(module)