add title

Author: roeib

README.md

@@ -43,7 +43,7 @@
 |37 | [Abort Fetch](#Abort-Fetch)|
 |38 | [How to change the value of an object which is inside an array](#How-to-change-the-value-of-an-object-which-is-inside-an-array)|
 |39 | [Numeric separators allow us to improve our code readability](#Numeric-separators-allow-us-to-improve-our-code-readability)|
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+|40 | [pay attention when using every](#pay-attention-when-using-every)|