docs: namespace: move it to the admin-guide

As stated at the documentation, this is meant to be for
users to better understand namespaces.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index f40c4b5..abc2c4e 100644
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -77,6 +77,7 @@
    thunderbolt
    LSM/index
    mm/index
+   namespaces/index
    perf-security
    acpi/index
 
diff --git a/Documentation/namespaces/compatibility-list.rst b/Documentation/admin-guide/namespaces/compatibility-list.rst
similarity index 100%
rename from Documentation/namespaces/compatibility-list.rst
rename to Documentation/admin-guide/namespaces/compatibility-list.rst
diff --git a/Documentation/namespaces/index.rst b/Documentation/admin-guide/namespaces/index.rst
similarity index 91%
rename from Documentation/namespaces/index.rst
rename to Documentation/admin-guide/namespaces/index.rst
index bf40625..713ec49 100644
--- a/Documentation/namespaces/index.rst
+++ b/Documentation/admin-guide/namespaces/index.rst
@@ -1,5 +1,3 @@
-:orphan:
-
 ==========
 Namespaces
 ==========
diff --git a/Documentation/namespaces/resource-control.rst b/Documentation/admin-guide/namespaces/resource-control.rst
similarity index 100%
rename from Documentation/namespaces/resource-control.rst
rename to Documentation/admin-guide/namespaces/resource-control.rst