LP#1848524: Docs: Move misplaced adoc file

Signed-off-by: Remington Steed <rjs7@calvin.edu>
Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>

diff --git a/docs-antora/modules/sys_admin/introduction.adoc b/docs-antora/modules/sys_admin/pages/introduction.adoc
similarity index 100%
rename from docs-antora/modules/sys_admin/introduction.adoc
rename to docs-antora/modules/sys_admin/pages/introduction.adoc