docs: update README

jamesgeorge007 · jamesgeorge007 · commit 68a5b547535e · 2021-06-14T12:01:04.000+05:30
diff --git a/README.md b/README.md
@@ -123,6 +123,10 @@ Show debug logs
 
 Alias: `-v`. Show version number and exit.
 
+### `--overwrite-dir`
+
+Overwrite target directory.
+
 ## Credits
 
 - [egoist](https://github.com/egoist)
