DOCSP-30355 Fixed Code Block (#265)

* fixed code block

* added javascript on updateOne

* changed example to one that exists in the database

* updated plot field

* grammar

* m dash

Author: gmiller-mdb

source/crud/update.txt

@@ -62,17 +62,17 @@ document that matches a specified filter.
    To update the *first* document in the ``sample_mflix.movies``
    collection where ``title`` equals ``"Tag"``:
 
-   .. code-block::
+   .. code-block:: javascript
 
       use sample_mflix
 
-      db.movies.updateOne( { title: "Tag" },
+      db.movies.updateOne( { title: "Twilight" },
       {
         $set: {
-          plot: "One month every year, five highly competitive friends
-                 hit the ground running for a no-holds-barred game of tag"
-        }
-        { $currentDate: { lastUpdated: true } }
+          plot: "A teenage girl risks everything–including her life–when she
+          falls in love with a vampire."
+        },
+        $currentDate: { lastUpdated: true } 
       })
 
    The update operation: