Fix documentation typo (#765)

Author: NWilson

doc/html/pcre2api.html

@@ -3170,7 +3170,7 @@ <h3>
 a partial match is found, <b>pcre2_match()</b> immediately returns
 PCRE2_ERROR_PARTIAL, without considering any other alternatives. In other
 words, when PCRE2_PARTIAL_HARD is set, a partial match is considered to be more
-important that an alternative complete match.
+important than an alternative complete match.
 </p>
 <p>
 There is a more detailed discussion of partial and multi-segment matching, with

doc/pcre2.txt

@@ -3081,7 +3081,7 @@ MATCHING A PATTERN: THE TRADITIONAL FUNCTION
        case,  if  a  partial match is found, pcre2_match() immediately returns
        PCRE2_ERROR_PARTIAL, without considering  any  other  alternatives.  In
        other words, when PCRE2_PARTIAL_HARD is set, a partial match is consid-
-       ered to be more important that an alternative complete match.
+       ered to be more important than an alternative complete match.
 
        There is a more detailed discussion of partial and multi-segment match-
        ing, with examples, in the pcre2partial documentation.

doc/pcre2api.3

@@ -3156,7 +3156,7 @@ If PCRE2_PARTIAL_HARD is set, it overrides PCRE2_PARTIAL_SOFT. In this case, if
 a partial match is found, \fBpcre2_match()\fP immediately returns
 PCRE2_ERROR_PARTIAL, without considering any other alternatives. In other
 words, when PCRE2_PARTIAL_HARD is set, a partial match is considered to be more
-important that an alternative complete match.
+important than an alternative complete match.
 .P
 There is a more detailed discussion of partial and multi-segment matching, with
 examples, in the