docs: ref-manual: terms: fix incorrect note directive

The directive is followed by two colons and not only one, so let's add
the missing one.

c.f. https://www.sphinx-doc.org/en/master/usage/restructuredtext/directives.html#directive-note

Fixes: 952c7e6dee49 ("manuals: improve initramfs details")
Cc: Quentin Schulz <foss+yocto@0leil.net>
(From yocto-docs rev: 203b75e9473b5905ce216dfbc2112dcb02e81f2d)

Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Reviewed-by: Michael Opdenacker <michael.opdenacker@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/documentation/ref-manual/terms.rst b/documentation/ref-manual/terms.rst
index bdb4f934cc..b5d5f1dbdf 100644
--- a/documentation/ref-manual/terms.rst
+++ b/documentation/ref-manual/terms.rst
@@ -224,7 +224,7 @@ universal, the list includes them just in case:
       having to duplicate accessed file contents in the file cache in RAM,
       as for any block device.
 
-      .. note:
+      .. note::
 
          As far as bootloaders are concerned, :term:`Initramfs` and "initrd"
          images are still copied to RAM in the same way. That's why most