doc: ReSTify seccomp_filter.txt

This updates seccomp_filter.txt for ReST markup, and moves it under the
user-space API index, since it describes how application author can use
seccomp.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index f7d568b8f133..752916d1461c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11492,6 +11492,7 @@ F:	kernel/seccomp.c
 F:      include/uapi/linux/seccomp.h
 F:      include/linux/seccomp.h
 F:      tools/testing/selftests/seccomp/*
+F:      Documentation/userspace-api/seccomp_filter.rst
 K:      \bsecure_computing
 K:      \bTIF_SECCOMP\b