diff --git a/courses/databases_nosql/key_concepts.md b/courses/databases_nosql/key_concepts.md
index 6cfe6a9..0f45c86 100644
--- a/courses/databases_nosql/key_concepts.md
+++ b/courses/databases_nosql/key_concepts.md
@@ -270,5 +270,5 @@ Below diagram demonstrates Quorum selection on a cluster partitioned into two se
 
 ![alt_text](images/cluster_quorum.png "image_tooltip")
 
-<p align="center">**Cluster Quorum example**</p>
+**<p align="center">**Cluster Quorum example</p>**