Update database_load_balancing.md

doc/administration/database_load_balancing.md

@@ -39,7 +39,7 @@ at least 1 secondary in [hot standby](https://www.postgresql.org/docs/11/hot-sta
 Load balancing also requires that the configured hosts **always** point to the
 primary, even after a database failover. Furthermore, the additional hosts to
 balance load among must **always** point to secondary databases. This means that
-you should put a load balance in front of every database, and have GitLab connect
+you should put a load balancer in front of every database, and have GitLab connect
 to those load balancers.
 
 For example, say you have a primary (`db1.gitlab.com`) and two secondaries,