A restaurant owner in Israel is trying to bring a bit of a peace—one dollop of hummus at a time—to a country where violence between Israelis and Palestinians has surged in recent weeks. “50 percent discount on hummus to a table where Arabs and Jews sit together,” wrote Kobi Tzafrir, the owner of Humus Bar, on his business’s Facebook page, which has since received thousands of shares and likes. “If there’s anything that can bring…