[linux-user-chroot] README: Link to Bazel

[Colin Walters <walters src gnome org>]

commit 3d1efb1cb5ee18937cc4cda82fad735dde0a7f0d
Author: Colin Walters <walters verbum org>
Date:   Tue Sep 8 12:41:17 2015 -0400

    README: Link to Bazel

 README |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/README b/README
index 05b1318..2580947 100644
--- a/README
+++ b/README
@@ -132,3 +132,12 @@ Programs using linux-user-chroot
 
  - https://github.com/CodethinkLabs/sandboxlib
  - https://git.gnome.org/browse/gnome-continuous/ uses it for builds
+
+Related projects
+----------------
+
+Google's Bazel system has a similar tool:
+
+https://github.com/google/bazel/blob/master/src/main/tools/namespace-sandbox.c
+
+(Noted by the sandboxlib/README.rst list of related projects)