Create dummy Release Notes for 4.8 on master

Author: jeana-redhat

_topic_map.yml

@@ -80,8 +80,8 @@ Name: Release notes
 Dir: release_notes
 Distros: openshift-enterprise
 Topics:
-- Name: OpenShift Container Platform 4.7 release notes
-  File: ocp-4-7-release-notes
+- Name: OpenShift Container Platform 4.8 release notes
+  File: ocp-4-8-release-notes
 - Name: Versioning policy
   File: versioning-policy
 ---
@@ -2468,7 +2468,7 @@ Topics:
   - Name: Customizing the installation
     File: customizing-installation-ossm
   - Name: Performance and scalability
-    File: ossm-performance-scalability 
+    File: ossm-performance-scalability
   - Name: Deploying applications on Service Mesh
     File: prepare-to-deploy-applications-ossm
   - Name: Data visualization and observability

migration/migrating_3_4/planning-migration-3-to-4.adoc

@@ -13,7 +13,7 @@ This planning document assumes that you are transitioning from {product-title} 3
 ====
 
 ifndef::openshift-origin[]
-This document provides high-level information on the most important xref:../../migration/migrating_3_4/planning-migration-3-to-4.adoc#migration-comparing-ocp-3-4[differences between {product-title} 3 and {product-title} 4] and the most noteworthy xref:../../migration/migrating_3_4/planning-migration-3-to-4.adoc#migration-considerations[migration considerations]. For detailed information on configuring your {product-title} 4 cluster, review the appropriate sections of the {product-title} documentation. For detailed information on new features and other notable technical changes, review the xref:../../release_notes/ocp-4-7-release-notes.adoc#ocp-4-7-release-notes[OpenShift Container Platform 4.7 release notes].
+This document provides high-level information on the most important xref:../../migration/migrating_3_4/planning-migration-3-to-4.adoc#migration-comparing-ocp-3-4[differences between {product-title} 3 and {product-title} 4] and the most noteworthy xref:../../migration/migrating_3_4/planning-migration-3-to-4.adoc#migration-considerations[migration considerations]. For detailed information on configuring your {product-title} 4 cluster, review the appropriate sections of the {product-title} documentation. For detailed information on new features and other notable technical changes, review the xref:../../release_notes/ocp-4-8-release-notes.adoc#ocp-4-8-release-notes[OpenShift Container Platform 4.8 release notes].
 endif::[]
 
 It is not possible to upgrade your existing {product-title} 3 cluster to {product-title} 4. You must start with a new {product-title} 4 installation. Tools are available to assist in migrating your control plane settings and application workloads.

release_notes/ocp-4-8-release-notes.adoc

@@ -0,0 +1,11 @@
+[id="ocp-4-8-release-notes"]
+= {product-title} {product-version} release notes
+include::modules/common-attributes.adoc[]
+:context: release-notes
+
+Do not add or edit release notes here. Edit release notes directly in the branch
+that they are relevant for.
+
+Release note changes should be added/edited in their own PR.
+
+This file is here to allow builds to work.

welcome/index.adoc

@@ -16,7 +16,7 @@ You can start with xref:../architecture/architecture.adoc#architecture-overview-
 xref:../security/container_security/security-understanding.adoc#understanding-security[Security and compliance].
 ifdef::openshift-enterprise,openshift-webscale[]
 Then, see
-xref:../release_notes/ocp-4-7-release-notes.adoc#ocp-4-7-release-notes[Release notes].
+xref:../release_notes/ocp-4-8-release-notes.adoc#ocp-4-8-release-notes[Release notes].
 endif::[]
 endif::[]