modify Makefile to add commit hash to book.toml before building, then clean up

afterwards

Makefile

@@ -1,20 +1,27 @@
 PORT := 8080
+COMMIT_HASH := $(shell git log -1 --pretty=format:%H | cut -c1-10)
 .PHONY: default
 default: build-qvs
 
 out:
 	mkdir -p out
 
+.PHONY: clean
+clean: 
+	rm -rf out/
+
 .PHONY: build-qvs
-build-qvs: out/qvs/index.json
+build-qvs: clean out/qvs/index.json
 out/qvs/index.json: out Containerfile.qvs $(shell find quorum-vault-system -type f)
 	mkdir -p out/qvs
+	sed -i "/^title *=/c\title = \"Quorum Vault System (QVS) ${COMMIT_HASH}\"" quorum-vault-system/book.toml
 	docker \
 		build \
 		-f Containerfile.qvs \
 		--output type=oci,rewrite-timestamp=true,force-compression=true,name=git.distrust.co/public/docs-qvs,tar=true,dest=- \
 		. \
 	| tar -C out/qvs -mx
+	sed -i "/^title *=/c\title = \"Quorum Vault System (QVS)\"" quorum-vault-system/book.toml
 
 .PHONY: serve-qvs
 serve-qvs: build-qvs