fix hash link (#16367)

docs/administration-guide/databases/mongodb.md

@@ -6,7 +6,7 @@ This article covers:
 - [Configuring SSL via the command line](#configuring-ssl-via-the-command-line).
 - [Connecting to a MongoDB Atlas cluster](#connecting-to-a-mongodb-atlas-cluster).
 - [General connectivity concerns](#general-connectivity-concerns).
-- [I added fields to my database but don't see them in Metabase](#i-added-fields-to-my-database-but-don't-see-them-in-metabase).
+- [I added fields to my database but don't see them in Metabase](#i-added-fields-to-my-database-but-dont-see-them-in-metabase).
 
 ## How does MongoDB work in Metabase
 
@@ -111,4 +111,4 @@ One workaround is to include all possible keys in the first document of the coll
 
 ## Further reading
 
-See our troubleshooting guide for [troubleshooting your connection](../../troubleshooting-guide/datawarehouse.md)
\ No newline at end of file
+See our troubleshooting guide for [troubleshooting your connection](../../troubleshooting-guide/datawarehouse.md)