Various documentation updates:
- update the tutorial
- update doc of deprecated cwise function
- update cwise doc snippets
diff --git a/doc/snippets/Cwise_min.cpp b/doc/snippets/Cwise_min.cpp
index a31d5a8..1c01c76 100644
--- a/doc/snippets/Cwise_min.cpp
+++ b/doc/snippets/Cwise_min.cpp
@@ -1,2 +1,2 @@
-Vector3d v(2,3,4), w(4,2,3);
-cout << v.cwise().min(w) << endl;
+Array3d v(2,3,4), w(4,2,3);
+cout << v.min(w) << endl;