👾 remove one extra break line

Author: Rnbsov

1-js/05-data-types/05-array-methods/article.md

@@ -634,7 +634,6 @@ So it's advised to always specify the initial value.
 
 The method [arr.reduceRight](mdn:js/Array/reduceRight) does the same, but goes from right to left.
 
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 ## Array.isArray
 
 Arrays do not form a separate language type. They are based on objects.