Update UPDATE.md

Author: Chris Wiechmann

UPDATE.md

@@ -143,7 +143,7 @@ The solution ships the latest available Elastic version with new releases. Howev
 :exclamation: Before proceeding, make sure that your Elasticsearch cluster consists of __at least 3 nodes__. For example 3 Elasticsearch nodes running on two machines is perfectly fine for this.  
 There are 3 Elasticsearch nodes required, as there must always be a master node in the cluster. If this master node is stopped, a quorum of remaining cluster nodes must still be running to elect a new master, otherwise an upgraded Elasticsearch node cannot join the cluster. [Learn more](https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-discovery-quorums.html)  
 
-[Read more](README.md##general-remarks) information about adding additional cluster nodes. After the upgrade, you can remove the third cluster node if necessary. Before proceeding, make sure that Elasticsearch is in the Green state.
+[Read more](README.md#general-remarks) information about adding additional cluster nodes. After the upgrade, you can remove the third cluster node if necessary. Before proceeding, make sure that Elasticsearch is in the Green state.
 
 Watch this video to see a demonstration how to update the Elastic-Stack:  
 [![Update Elastic-Stack](https://img.youtube.com/vi/Oht_Xnzurok/0.jpg)](https://youtu.be/Oht_Xnzurok)