docs/mtd: Fix RAMTRON heading underline length.

Extend the underline to match the 28-character heading so the Sphinx
build does not fail with a title underline too short warning.

Assisted-by: Codex:GPT-6
Signed-off-by: jsanchez-2g <jsanchez@2g-eng.com>
This commit is contained in:
jsanchez-2g 2026-10-08 12:11:11 -05:00 • committed by Xiang Xiao
parent 8e6b925200
commit 87ae65fa6e

View file

@ -314,7 +314,7 @@ NuttX provides support for the following MTD devices.
devices/*
RAMTRON SPI FRAM byte writes
===========================
============================
With ``CONFIG_MTD_RAMTRON`` and ``CONFIG_MTD_BYTE_WRITE`` enabled, the
RAMTRON driver implements ``MTD_WRITE()`` for arbitrary byte offsets and