Update README.md to track #4316

README.md

@@ -13,6 +13,7 @@
   - [Dependencies](#dependencies)
 - [Usage](#usage)
 - [Contributing](#contributing)
+- [Additional Notes](#additional-notes)
 
 ## More Information
 
@@ -129,3 +130,11 @@ This project is released under the [Apache License, Version 2.0](LICENSE).
 [fossa-img]: https://app.fossa.io/api/projects/custom%2B4529%2Fgithub.com%2Fm3db%2Fm3.svg?type=shield
 
 [fossa]: https://app.fossa.io/projects/custom%2B4529%2Fgithub.com%2Fm3db%2Fm3?ref=badge_shield
+
+## Additional Notes
+
+You are unable to run the following command locally. It must be run in a docker container (such as when running in a buildkite pipeline). This issue is tracked in https://github.com/m3db/m3/issues/4316.
+
+```shell
+make clean install-vendor-m3 docker-compatibility-test
+```