RHIDP-6568: Create RHDH Metadata card customization content

Author: linfraze

Diff for: modules/customizing/proc-customizing-rhdh-metadata-card.adoc

@@ -0,0 +1,32 @@
+:_mod-docs-content-type: PROCEDURE
+[id="proc-customizing-rhdh-metadata-card_{context}"]
+= Customizing the {product-very-short} Metadata card on the Settings page
+
+The *Settings* page in {product} contains a *{product-very-short} Metadata* card. By default, the *{product-very-short} Metadata* card shows the *{product-very-short} Version* and *Backstage Version* of your {product} instance. When you click the *Show more* icon, the card expands to also show *Upstream*, *Midstream*, and *Build Time* information.
+
+You can override the default to show custom build information about your {product} instance in the card. You can customize the card title as well as the card contents.
+
+.Procedure
+
+To customize the *{product-very-short} Metadata* card, complete the following step:
+
+* In your app-config.yaml file, configure the `buildinfo` field. For example:
++
+[source,yaml,subs=+attributes,+quotes]
+----
+buildInfo:
+  title: <build_info_card_title>
+  card:
+    TechDocs builder: '<techdocs_builder>'
+    Authentication provider: '_<authentication_provider>_'
+    RBAC: disabled
+----
++
+where
+
+_<build_info_card_title>_ :: Specifies the title that you want to display in the *{product-very-short} Build info* card.
+_<authentication_provider>_ :: Specifies the authentication provider that you want to use, for example, `GitHub` or `GitLab`.
+_<techdocs_builder>_ :: Specifies the TechDocs builder that you want to use, for example, `local`.
+
+.Result
+The *Settings* page displays a card with a custom title and custom build information about your {product} instance.