DOCSP-14923 fix deprecated directive for NextGen

Author: andf-mongodb

source/reference/method/db.collection.ensureIndex.txt

@@ -9,8 +9,27 @@ db.collection.ensureIndex()
 .. admonition:: Removed in 5.0
    :class: note
 
+<<<<<<< HEAD
    :method:`db.collection.ensureIndex()` has been replaced by 
    :method:`db.collection.createIndex()`.
+=======
+   .. include:: /includes/fact-mongo-shell-method.rst
+
+
+   .. deprecated:: 3.0
+
+      :method:`db.collection.ensureIndex()` has been replaced by 
+      :method:`db.collection.createIndex()`.
+
+   Creates an index on the specified field if the index does not
+   already exist.
+
+Additional Information
+----------------------
+
+- Use :method:`db.collection.createIndex()` rather than
+  :method:`db.collection.ensureIndex()` to create new indexes.
+>>>>>>> 22fb3e9e4... DOCSP-14923 fix deprecated directive for NextGen
 
 .. seealso::