Bump roxygen2 version to 8.0.0

Change-Id: Ib5f5c66bd3db80d147370d2f16fc1c340240477c
diff --git a/man/fetchAnnotations-KorAPQuery-method.Rd b/man/fetchAnnotations-KorAPQuery-method.Rd
index 99f20e4..2c81a10 100644
--- a/man/fetchAnnotations-KorAPQuery-method.Rd
+++ b/man/fetchAnnotations-KorAPQuery-method.Rd
@@ -94,7 +94,7 @@
 }
 }
 \seealso{
-Other corpus search functions: 
+Other corpus search functions:
 \code{\link{corpusQuery,KorAPConnection-method}},
 \code{\link{fetchAll,KorAPQuery-method}},
 \code{\link{fetchNext,KorAPQuery-method}}