Update modules/ROOT/pages/_partials/task-add-api-instance.adoc

Co-authored-by: Daniela Merlo <97902112+dmerlob@users.noreply.github.com>

Author: failup

modules/ROOT/pages/_partials/task-add-api-instance.adoc

@@ -80,7 +80,7 @@ See xref:runtime-manager::servers-create.adoc[Register a server in Runtime Manag
 .. Select a target from the list or click **Add server**.
 .. Enter a *Proxy app name*.
 
-* *Self-managed Server:* Select this option if you want to create a JAR file to deploy an API proxy to a Mule runtime running on an on-premises server that is not registered in Runtime Manager. For more information, see xref:mule-runtime::mule-deployment-model.adoc[].
+* *Self-managed Server:* Select this option if you want to create a JAR file to deploy an API proxy to a Mule runtime instance running on an on-premises server that is not registered in Runtime Manager. For more information, see xref:mule-runtime::mule-deployment-model.adoc[].
 ====
 Deploying an API proxy to a self-managed server in API Manager doesn’t deploy the proxy to your on-premises server. After you deploy the proxy in API Manager, deploy the proxy to your on-premises server:
 . xref:download-proxy-task.adoc[Download your new API proxy JAR file].