changed text reference from raster to terra package

Author: dafnidrake

episodes/09-vector-when-data-dont-line-up-crs.Rmd

@@ -90,7 +90,7 @@ in the same projection to support plotting / mapping. Note that these skills
 are also required for any geoprocessing / spatial analysis. Data need to be in
 the same CRS to ensure accurate results.
 
-We will continue to use the `sf` and `raster` packages in this episode.
+We will continue to use the `sf` and `terra` packages in this episode.
 
 ## Import US Boundaries - Census Data