Update README with relocation and redirect info
diff --git a/README.md b/README.md
index 6fe351d..26344ed 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,3 @@
 This project has been relocated to [grails-core](https://github.com/apache/grails-core) as of Grails 7.
+
+the gh-pages branch is used to redirect all https://views.grails.org/ URLs to https://grails.apache.org/docs-legacy-views/