Page move and diacritics

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I moved this title from Petrus Ký to Pétrus Ky to follow the spelling of Britannica. "Petrus Ký" (Vietnamese diacritic) gets 5 results on Google Books (including two in Vietnamese), "Pétrus Ky" (French diacritic) gets 10, "Pétrus Ký" gets 2, and diacritic-free "Petrus Ky" gets 75. Kauffner (talk)