docs: update contributors count

Author: igor-baiborodine

v4/README.md

@@ -5,7 +5,7 @@
 [![Hugo Themes](https://img.shields.io/badge/Hugo_Themes-@Bilberry-ff4088)](https://themes.gohugo.io/themes/bilberry-hugo-theme/)
 
 [![Build GH-Pages](https://github.com/Lednerb/bilberry-hugo-theme/workflows/Update%20GitHub%20Pages/badge.svg)](https://github.com/Lednerb/bilberry-hugo-theme/deployments/activity_log?environment=github-pages)
-[![Contributors](https://img.shields.io/badge/contributors-48-orange.svg?style=flat-square)](#contributors)
+[![Contributors](https://img.shields.io/badge/contributors-52-orange.svg?style=flat-square)](#contributors)
 [![License](https://img.shields.io/github/license/Lednerb/bilberry-hugo-theme.svg?style=flat-square)](https://github.com/Lednerb/bilberry-hugo-theme/blob/master/LICENSE.md)
 
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