Fix syntax highlighting for CloudFoundry instructions
@@ -193,7 +193,7 @@ Update the `domain.xml` file to add the `-javaagent` flag and system properties.
==== Cloud Foundry
Inject the `elastic-apm-agent-<version>.jar` into the root path of the deployable application, e.g. `my-application.jar`. Update the `manifest.yml` file to add the `-javaagent` flag and system properties as part of `JAVA_OPTS`.
-[source,xml]
+[source,yml]
.manifest.yml
----
applications:
