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diff --git a/README.md b/README.md
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+++ b/README.md
@@ -1,5 +1,10 @@
 [![Codacy Badge](https://app.codacy.com/project/badge/Grade/1525a18654274975b8fcfc6992216ad3)](https://www.codacy.com/gh/terminaldweller/devourer/dashboard?utm_source=github.com&utm_medium=referral&utm_content=terminaldweller/devourer&utm_campaign=Badge_Grade)
 [![Total alerts](https://img.shields.io/lgtm/alerts/g/terminaldweller/devourer.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/terminaldweller/devourer/alerts/)
+[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
 
 # devourer
 A knowledge aggregator
+
+```sh
+./devourer.py --singlelink --source https://en.wikipedia.org/wiki/I/O_virtualization
+```