Fix comparing array and number

lib/rules_block/table.js

@@ -34,7 +34,7 @@ module.exports = function table(state, startLine, endLine, silent) {
   if (!/^[-:| ]+$/.test(lineText)) { return false; }
 
   rows = lineText.split('|');
-  if (rows <= 2) { return false; }
+  if (rows.length < 2) { return false; }
   aligns = [];
   for (i = 0; i < rows.length; i++) {
     t = rows[i].trim();