docs: fixed typo in comment (#15531)

Jiapei Liang · web-flow · commit 851f1f18bd1a · 2022-01-19T06:15:17.000+05:30
diff --git a/docs/user-guide/command-line-interface.md b/docs/user-guide/command-line-interface.md
@@ -14,7 +14,7 @@ Such as:
 # Run on two files
 npx eslint file1.js file2.js
 
-# Run on multiples files
+# Run on multiple files
 npx eslint lib/**
 ```
 
