fix code block

Author: danielclowers

docs/cnv/release-notes/rn-process.md

@@ -51,17 +51,17 @@ For builds and tests to be successful in your GitHub pull request, you must open
    * `$ touch virt/release_notes/virt-4-18-release-notes.adoc`
 4. Place the contents below into that file and save it.
 
-   ```text
-   :_mod-docs-content-type: ASSEMBLY
-   [id="virt-4-18-release-notes"]
-   = {VirtProductName} release notes
-   include::_attributes/common-attributes.adoc[]
-   :context: virt-4-18-release-notes
-   toc::[]
-   Do not add or edit release notes here. Edit release notes directly in the branch
-   that they are relevant for.
-   This file is here to allow builds to work.
-   ```
+```text
+:_mod-docs-content-type: ASSEMBLY
+[id="virt-4-18-release-notes"]
+= {VirtProductName} release notes
+include::_attributes/common-attributes.adoc[]
+:context: virt-4-18-release-notes
+toc::[]
+Do not add or edit release notes here. Edit release notes directly in the branch
+that they are relevant for.
+This file is here to allow builds to work.
+```
 
 5. Save all changes and submit your pull request. Only merge review from the CNV team is necessary.