doc: make Wikipedia hyperlinks anonymous

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Justin Viiret 2017-11-07 14:43:58 +11:00 committed by Xiang Wang
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@ -405,14 +405,14 @@ follows:
#. **Edit distance** is defined as Levenshtein distance. That is, there are
three possible edit types considered: insertion, removal and substitution.
A more formal description can be found on
`Wikipedia <https://en.wikipedia.org/wiki/Levenshtein_distance>`_.
`Wikipedia <https://en.wikipedia.org/wiki/Levenshtein_distance>`__.
#. **Hamming distance** is the number of positions by which two strings of
equal length differ. That is, it is the number of substitutions required to
convert one string to the other. There are no insertions or removals when
approximate matching using a Hamming distance. A more formal description can
be found on
`Wikipedia <https://en.wikipedia.org/wiki/Hamming_distance>`_.
`Wikipedia <https://en.wikipedia.org/wiki/Hamming_distance>`__.
#. **Approximate matching** will match all *corpora* within a given edit or
Hamming distance. That is, given a pattern, approximate matching will match