apply a minor handbook makefile fix

Handbook/GNUmakefile

@@ -496,9 +496,9 @@ _mdbook_build:
 		SG_GIT_TAG='$(SG_GIT_TAG)' \
 		SG_GIT_COMMIT='$(SG_GIT_COMMIT)' \
 		SG_GIT_COMMIT_NUMS_SINCE_TAG='$(SG_GIT_COMMIT_NUMS_SINCE_TAG)' \
+		SG_GIT_TREE_STATE='$(SG_GIT_TREE_STATE)' \
 		SG_GIT_IS_SHALLOW_CLONE='$(SG_GIT_IS_SHALLOW_CLONE)' \
 		SG_GIT_LATEST_REMOTE_TAG='$(SG_GIT_LATEST_REMOTE_TAG)' \
-		SG_GIT_TREE_STATE='$(SG_GIT_TREE_STATE)' \
 		SG_GIT_VERSION='$(SG_GIT_VERSION)' \
 		SG_GIT_VERSION_MAJOR='$(SG_GIT_VERSION_MAJOR)' \
 		SG_GIT_VERSION_MINOR='$(SG_GIT_VERSION_MINOR)' \

Handbook/src/appendix/changelog.md

@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Documentation
+
+- Applied a minor Handbook Makefile fix.
+- Additional minor fixes and improvements that may not be listed here.
+
 ## [2.4.0] - 2025-02-14
 
 This minor release brings various improvements and, notably, the first version to add support for VIVE standalone mode with ViveOpenXR compatibility.