Docs - escape hyphens to correct markdown table rendering
@@ -607,7 +607,7 @@ INSERT INTO mymatrix
VALUES (array[[0,1],[1,0]]);
SELECT sum(myvalue) FROM mymatrix;
sum
----------------
+\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
{{1,3},{4,4}}</code></pre>
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<td class="entry" headers="topic31__in2073121__entry__4">Performs matrix summation. Can take as input a
