Improve Nix instructions in README
Change-Id: I758f9f84f449e2ea3f8cd8c28b3dbcce72584496
Reviewed-on: https://review.monogon.dev/c/monogon/+/2083
Reviewed-by: Lorenz Brun <lorenz@monogon.tech>
Tested-by: Jenkins CI
diff --git a/README.md b/README.md
index 49fd954..00a6945 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
Our build environment is self-contained and requires only minimal host dependencies:
- A Linux machine or VM.
-- [Bazelisk](https://github.com/bazelbuild/bazelisk) >= v1.15.0
+- [Bazelisk](https://github.com/bazelbuild/bazelisk) >= v1.15.0 (or a working Nix environment).
- A reasonably recent kernel with user namespaces enabled.
- Working KVM with access to `/dev/kvm` (if you want to run tests).