move docbook2X package from Extended to Core (#7012)

SPECS/docbook2X/docbook2X.spec

@@ -2,7 +2,7 @@ Vendor:         Microsoft Corporation
 Distribution:   Mariner
 Name:           docbook2X
 Version:        0.8.8
-Release:        36%{?dist}
+Release:        37%{?dist}
 Summary:        Convert docbook into man and Texinfo
 
 License:        MIT
@@ -71,6 +71,10 @@ rm -f $RPM_BUILD_ROOT%{_infodir}/dir
 
 
 %changelog
+* Wed Dec 20 2023 Sindhu Karri <lakarri@microsoft.com> - 0.8.8-37
+- Promote package to Mariner Base repo
+- Verified license
+
 * Fri Oct 15 2021 Pawel Winogrodzki <pawelwi@microsoft.com> - 0.8.8-36
 - Initial CBL-Mariner import from Fedora 32 (license: MIT).