Method push_back

src/toml.hpp:12993–12999

		}

		void push_back(std::string_view segment, source_position b, source_position e)
		{
			segments.push_back({ buffer.length(), segment.length() });
			buffer.append(segment);
			starts.push_back(b);
			ends.push_back(e);
		}

		TOML_PURE_INLINE_GETTER
		std::string_view operator[](size_t i) const noexcept