😒 chore(README): Link to main branch.

README.md

@@ -11,17 +11,17 @@ Parent is [aureooms/js-library](https://github.com/aureooms/js-library).
 mul( 6 , 7 ) ; // 42
 ```
 
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 [![Dependencies](https://img.shields.io/david/aureooms/js-number.svg)](https://david-dm.org/aureooms/js-number)
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