Fix callout type

episodes/15-reproject-raster-data.Rmd

@@ -53,7 +53,7 @@ For this episode, we will be working with the Digital Terrain Model data. This d
 
 We’ll be looking at another model (the canopy/building height model, or CHM) in [a later episode](../episodes/16-raster-calculations.Rmd) and will see how to calculate the CHM from the DSM and DTM. Here, we will create a map of the Digital Terrain Model (`DTM_TUD`) of TU Delft and its surrounding draped (or layered) on top of the hillshade (`DTM_hill_TUD`). 
 
-:::::::::::::::::::::::::::::::::::::: questions
+:::::::::::::::::::::::::::::::::::::: callout
 
 ### Layering Rasters: Hillshade