Update docs/integrations/databases/mongodb.md

Co-authored-by: Amee Lepcha <[email protected]>

Author: chetanchoudhary-sumo

docs/integrations/databases/mongodb.md

@@ -73,7 +73,7 @@ This section provides instructions for configuring log and metric collection for
 
 ### Step 1: Configure fields in Sumo Logic
 
-As part of the app installation process, the following fields will created by default:
+As part of the app installation process, the following fields will be created by default:
 * `component`
 * `environment`
 * `db_system`