docs: update list of contributors

PR-URL: #7519
Reviewed-by: Athan Reines <kgryte@gmail.com>
Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>

Author: stdlib-bot

CONTRIBUTORS

@@ -198,6 +198,7 @@ Yaswanth Kosuru <116426380+yaswanthkosuru@users.noreply.github.com>
 Yernar Yergaziyev <yernar.yergaziyev@erg.kz>
 Yugal Kaushik <yugalkaushik14@gmail.com>
 Yuvi Mittal <128018763+yuvi-mittal@users.noreply.github.com>
+deepak427 <62477872+deepak427@users.noreply.github.com>
 devshree-bhati <147095250+devshree-bhati@users.noreply.github.com>
 ditsu <170345142+ditsus@users.noreply.github.com>
 ekambains <bainsinbusiness@gmail.com>