Document difference with other tools (#28)

Co-authored-by: Sindre Sorhus <sindresorhus@gmail.com>

readme.md

@@ -31,6 +31,12 @@ $ del --help
 
 > :warning: **Windows users**: Since `$ del` is already a builtin command on Windows, you need to use `$ del-cli` there.
 
+## Comparison
+
+Benefits over `rimraf` CLI: Supports globbing (even on Windows), safer by default as it doesn't allow deleting parent directories, and has a dry-run mode.
+
+Benefits over `rm -rf`: Cross-platform, safer by default as it doesn't allow deleting parent directories, and has a dry-run mode.
+
 ## Related
 
 - [del](https://github.com/sindresorhus/del) - API for this module