fixed custom metadata image and nav errors

Author: tasmoore

modules/ROOT/nav.adoc

@@ -88,6 +88,7 @@
 *** xref:int-configure-components-open-from-xml.adoc[]
 ** xref:int-create-secure-configs.adoc[]
 ** xref:int-trigger-flows.adoc[]
+** xref:int-manage-custom-metadata.adoc[]
 ** xref:int-debug-mule-apps.adoc[]
 ** xref:int-test-munit.adoc[]
 ** xref:int-autodiscovery-config.adoc[]

modules/ROOT/pages/int-manage-custom-metadata.adoc

@@ -2,7 +2,7 @@
 
 Define and assign custom metadata to accurately represent your organization's unique data structures within your integration projects. Create metadata for inputs and outputs using common formats so your data transformations stay accurate. Custom metadata connects your visual development tools to your data requirements, facilitating easier testing and workflow creation.
 
-image::int-custom-metadata-project-properties.png["Custom Metadata tab on the Project Properties page"]
+image::int-custom-metadata-project-prop.png["Custom Metadata tab on the Project Properties page"]
 
 == Supported Metadata Types