define mdfiles/images in config/submodules/docs/

again: the "depend" variable must never be used for subprojects
that point to a subdirectory of the main project, because there's
no clean way of handling this in case of error conditions.

make it a submodule under config/submodules/. this is for the
documentation, including static site generator documentation,
and image files (photos).

as of this revision, there are now only those "depend" projects
defined in config/git/, where the destination directory of the
subject is not a subdirectory of the main project, so:

in a subsequest revision, i will mitigate an existing bug whereby
failure of the dependency project leaves the main one still
intact, breaking builds; this revision enables that to be done.

from now on, subproject-to-subdirectory-of-main-project will
be avoided in config/git/; config/submodules/ will be used.

Signed-off-by: Leah Rowe <leah@libreboot.org>

config/git/docs

@@ -3,28 +3,4 @@
 	loc: docs
 	url: https://codeberg.org/vimuser/untitled
 	bkup_url: https://notabug.org/untitled/untitled
-	depend: mdfiles
-	depend: untitledwww
-}
-
-{mdfiles}{
-	rev: bed60ad131fd90c9e48fcda475e21e353466db1c
-	loc: docs/www/html
-	url: https://codeberg.org/canoeboot/cbwww
-	bkup_url: https://git.disroot.org/canoeboot/cbwww
-	depend: imgfiles
-}
-
-{imgfiles}{
-	rev: 12fd6c46c9de7161c85fa497824467ea035a721b
-	loc: docs/www/html/site/img
-	url: https://codeberg.org/canoeboot/cbwww-img
-	bkup_url: https://git.disroot.org/canoeboot/cbwww-img
-}
-
-{untitledwww}{
-	rev: 78cdadea40143a7e55b8eae48f4239d31ebb5c16
-	loc: docs/www/untitled
-	url: https://codeberg.org/vimuser/untitled-website
-	bkup_url: https://notabug.org/untitled/untitled-website
 }

config/submodule/docs/html/module.cfg

@@ -0,0 +1,3 @@
+subrev="bed60ad131fd90c9e48fcda475e21e353466db1c"
+subrepo="https://codeberg.org/canoeboot/cbwww"
+subrepo_bkup="https://git.disroot.org/canoeboot/cbwww"

config/submodule/docs/img/module.cfg

@@ -0,0 +1,3 @@
+subrev="12fd6c46c9de7161c85fa497824467ea035a721b"
+subrepo="https://codeberg.org/canoeboot/cbwww-img"
+subrepo_bkup="https://git.disroot.org/canoeboot/cbwww-img"

config/submodule/docs/module.list

@@ -0,0 +1,3 @@
+www/untitled
+www/html
+www/html/site/img

config/submodule/docs/untitled/module.cfg

@@ -0,0 +1,3 @@
+subrev="78cdadea40143a7e55b8eae48f4239d31ebb5c16"
+subrepo="https://codeberg.org/vimuser/untitled-website"
+subrepo_bkup="https://notabug.org/untitled/untitled-website"