docs: 5.0 migration guide skeleton (#2210)

Signed-off-by: Attila Mészáros <[email protected]>

Author: csviri

docs/_data/sidebar.yml

@@ -32,4 +32,6 @@
   - title: Migrating from v4.3 to v4.4
     url: /docs/v4-4-migration
   - title: Migrating from v4.4 to v4.5
-    url: /docs/v4-5-migration
+    url: /docs/v4-5-migration
+  - title: Migrating from v4.7 to v5.0
+    url: /docs/v5-0-migration

docs/documentation/v5-0-migration.md

@@ -0,0 +1,8 @@
+---
+title: Migrating from v4.7 to v5.0
+description: Migrating from v4.7 to v5.0
+layout: docs
+permalink: /docs/v5-0-migration
+---
+
+# Migrating from v4.7 to v5.0