screwed up busybox link at the bottom

README.md

@@ -119,7 +119,7 @@ Although you can extend this image to add configuration files to define services
 
 It's recommended you keep your check logic simple, such as using inline `curl` or `ping` commands. Otherwise, keep in mind the default shell is `ash`.
 
-If you absolutely need to customize startup configuration, you can extend this image by making a new Dockerfile based on this one and having a `config` directory containing config JSON files. They will be added to the image you build via ONBUILD hooks. You can also add packages with `opkg`. See [docs on the Busybox image]((https://github.com/progrium/busybox)) for more info.
+If you absolutely need to customize startup configuration, you can extend this image by making a new Dockerfile based on this one and having a `config` directory containing config JSON files. They will be added to the image you build via ONBUILD hooks. You can also add packages with `opkg`. See [docs on the Busybox image](https://github.com/progrium/busybox) for more info.
 
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