fix line emphasis

(cherry picked from commit 3f27c73)

Author: rustagir

source/databases-collection.txt

@@ -89,7 +89,7 @@ specific options:
 .. literalinclude:: /includes/usage-examples/databases-collection.rb
    :language: ruby
    :dedent:
-   :emphasize-lines: 2
+   :emphasize-lines: 3
    :start-after: start-create-collection
    :end-before: end-create-collection
 
@@ -261,4 +261,4 @@ guide, see the following API documentation:
 - :ruby-api:`command <Monitoring/Event/CommandStarted.html#command-instance_method>`
 - :ruby-api:`drop database <Database.html#drop-instance_method>`
 - :ruby-api:`drop collection <Collection.html#drop-instance_method>`
-- :ruby-api:`with <Collection.html#with-instance_method>`
+- :ruby-api:`with <Collection.html#with-instance_method>`