Update docs/modules/ROOT/pages/how-to-guides/testing_applications/proc_creating_custom_test.adoc

Co-authored-by: Gaurav Trivedi <90042568+gtrivedi88@users.noreply.github.com>

Author: Chr1st1anSears

docs/modules/ROOT/pages/how-to-guides/testing_applications/proc_creating_custom_test.adoc

@@ -104,7 +104,7 @@ Labels:
 
 * *`appstudio.openshift.io/application`*: contains the name of the application
 * *`appstudio.openshift.io/component`*: contains the name of the component
-* `appstudio.openshift.io/snapshot`: contains the name of the snapshot.
+* *`appstudio.openshift.io/snapshot`*: contains the name of the snapshot
 * `test.appstudio.openshift.io/optional`: contains the optional flag, which specifies whether or not components must pass the integration test before deployment.  
 * `test.appstudio.openshift.io/scenario`: contains the name of the integration test (this label ends with "scenario," because each test is technically a custom resource called an `IntegrationTestScenario`).