Fix typo in contrib/intarray documentation
Reported-by: Erik Rijkers
Discussion:
determines the maximum number of ranges in
one index key. The default value of <literal>numranges</literal> is 100.
Valid values are between 1 and 253. Using larger arrays as GiST index
- keys leads to a more precise search (scaning a smaller fraction of the index and
+ keys leads to a more precise search (scanning a smaller fraction of the index and
fewer heap pages), at the cost of a larger index.
</para>
