add make rename support, update README

Makefile

@@ -72,5 +72,12 @@ rename:
 		echo "Aborted."; \
 		exit 1; \
 	fi
-	@find . -type f \( -name '*.go' -o -name 'go.mod' -o -name 'go.sum' -o -name '*.proto' -o -name 'Makefile' \) -exec sed -i "s|$(GIT_REPO)|$(NAME)|g" {} +
+	@find . -type f -a \
+	\( -name '*.go' -o -name 'go.mod' \
+		-o -name 'go.sum' -o -name '*.proto' \
+		-o -name 'Makefile' \
+		-o -name '*.yml' -o -name '*.yaml' \
+	\) \
+	-not -path './.git' -not -path './.git/*' \
+	-exec sed -i "s|$(GIT_REPO)|$(NAME)|g" {} +
 	@echo "Project renamed to $(NAME)"