doc: fix 2.3 release notes broken link
Removed the VBS-K Framework Virtualization Overhead Analysis document on
master.
@@ -74,7 +74,7 @@ New and updated reference documents are available, including:
* :ref:`asa`
* GVT-g-porting (obsolete with v2.6))
-* :ref:`vbsk-overhead`
+* VBS-K Framework Virtualization Overhead Analysis
* :ref:`asm_coding_guidelines`
* :ref:`c_coding_guidelines`
* :ref:`contribute_guidelines`
