Fix grammatical error in README.md

README.md

@@ -1,6 +1,6 @@
 996.ICU
 =======
-The name `996.ICU` refers to **'Work in "996", sick in ICU'**, an ironic saying among Chinese programmers, which means that following the "996" work schedule, you are risking yourself getting into ICU (Intensive Care Unit).
+The name `996.ICU` refers to **'Work in "996", sick in ICU'**, an ironic saying among Chinese programmers, which means that by following the "996" work schedule, you are risking yourself getting into ICU (Intensive Care Unit).
 
 <a href="https://996.icu/#/zh_CN"><img src="https://img.shields.io/badge/996-ICU-red.svg"></a>
 <a href="https://github.com/996icu/996.ICU/blob/master/LICENSE.996icu.zh-hans"><img src="https://img.shields.io/badge/license-996ICU-green.svg"></a>