fix: commit only when website has been updated

scripts/zola.sh

@@ -109,9 +109,12 @@ deploy() {
 	/bin/rm -rf *
 	cp -r $tmp_dir/* .
 	git add --all
-	git commit \
-		--author="$3" \
-		--message="new deploy: $(date --iso-8601=seconds)"
+	if [ ! -z $(git status --porcelain) ];
+	then
+		git commit \
+			--author="$3" \
+			--message="new deploy: $(date --iso-8601=seconds)"
+	fi
 	git checkout $original_branch
 }