Three trivial mistakes in localized API doc for RuleBasedCollator class

(1) In the class description, just before the "Ignorable Characters" section,

  English: [\u00e3
  Japanese: \[u00e3

(2) In the "Examples" section,

  English: "< a < b < c < d"
  Japanese:¿<"a < b < c < d¿ (An unnecessary double-quote is included.)

  English: "< a,A< b,B< c,C< snip < \u00F8,\u00D8"
  Japanese: "< a,A< b,B< c,C< snip < \u00F8,\u00D8¿ (The first double-quote should be converted to a bracket.)