Documentation: Add and link the arch directory

Fixes: b159d5ba8f ("riscv: add documentation for stages and payloads")
Change-Id: I5ca8ed094c9b6d115da707375205872e782a66b2
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/28991
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/Documentation/arch/index.md b/Documentation/arch/index.md
new file mode 100644
index 0000000000..c3b080e5ab
--- /dev/null
+++ b/Documentation/arch/index.md
@@ -0,0 +1,8 @@
+# Architecture-specific documentation
+
+This section contains documentation about coreboot on specific CPU
+architectures.
+
+## RISC-V
+
+- [RISC-V documentation](riscv/index.md)