Merge pull request #289 from r-devel/bug/welcome-message

minor update to welcome message

Author: hturner

scripts/welcome_msg.sh

@@ -15,9 +15,7 @@ echo -e "
 Welcome to the R Dev Container v$CONTAINER_VERSION
 
 Here you can modify, compile and use R as described in
-the r development guide:
-    https://contributor.r-project.org/r-dev-env/tutorials/building_r/
-
+https://contributor.r-project.org/r-dev-env/tutorials/building_r/
 
 To help you, we have already set the following environment variables: