Update docs 'make serve' to suggest 'make htmllive' (pythonGH-126969)

(cherry picked from commit 5fcc3a4)

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Doc/Makefile

@@ -294,7 +294,7 @@ check: _ensure-pre-commit
 
 .PHONY: serve
 serve:
-	@echo "The serve target was removed, use htmlview instead (see bpo-36329)"
+	@echo "The serve target was removed, use htmllive instead (see gh-80510)"
 
 # Targets for daily automated doc build
 # By default, Sphinx only rebuilds pages where the page content has changed.