Add normalization note on test case

bip-0038.mediawiki

@@ -253,10 +253,11 @@ Test 2:
 *Unencrypted private key (hex): C2C8036DF268F498099350718C4A3EF3984D2BE84618C2650F5171DCC5EB660A
 
 Test 3:
-*Passphrase `\u03D2\u0301\u0000\U00010400\U0001F4A9`; [http://codepoints.net/U+03D2 GREEK UPSILON WITH HOOK], [http://codepoints.net/U+0301 COMBINING ACUTE ACCENT], [http://codepoints.net/U+0000 NULL], [http://codepoints.net/U+10400 DESERET CAPITAL LETTER LONG I], [http://codepoints.net/U+1F4A9 PILE OF POO]
+*Passphrase <tt>\u03D2\u0301\u0000\U00010400\U0001F4A9</tt>; [http://codepoints.net/U+03D2 GREEK UPSILON WITH HOOK], [http://codepoints.net/U+0301 COMBINING ACUTE ACCENT], [http://codepoints.net/U+0000 NULL], [http://codepoints.net/U+10400 DESERET CAPITAL LETTER LONG I], [http://codepoints.net/U+1F4A9 PILE OF POO]
 *Encrypted key: 6PRW5o9FLp4gJDDVqJQKJFTpMvdsSGJxMYHtHaQBF3ooa8mwD69bapcDQn
 *Bitcoin Address: 16ktGzmfrurhbhi6JGqsMWf7TyqK9HNAeF
 *Unencrypted private key (WIF): 5Jajm8eQ22H3pGWLEVCXyvND8dQZhiQhoLJNKjYXk9roUFTMSZ4
+* ''Note:'' The non-standard UTF-8 characters in this passphrase should be NFC normalized to result in a passphrase of <tt>0xcf9300f0909080f09f92a9</tt> before further processing
 
 ===EC multiply, no compression, lot/sequence numbers===