index: reorganize pages based on customer life cycle

Signed-off-by: Vanessa Maegima <vanessa.maegima@foundries.io>

source/index.rst

@@ -37,21 +37,21 @@ OE/Yocto Project, the Linux microPlatform™ and Docker®.
    :caption: User Guide
    :name: sec-user-guide
 
+   user-guide/fioctl/index
    user-guide/account-management/account-management
-   user-guide/containers-and-docker/index
    user-guide/custom-ci/custom-ci
+   user-guide/mirror-action/mirror-action
+   user-guide/submodule/submodule
+   user-guide/foundriesio-rest-api/foundriesio-rest-api
+   user-guide/containers-and-docker/index
    user-guide/lmp-customization/index
    user-guide/lmp-auto-hostname/lmp-auto-hostname
    user-guide/lmp-device-auto-register/lmp-device-auto-register
-   user-guide/foundriesio-rest-api/foundriesio-rest-api
-   user-guide/mirror-action/mirror-action
-   user-guide/submodule/submodule
    user-guide/custom-sota-client
-   user-guide/fioctl/index
-   user-guide/rotating-cert
-   user-guide/device-gateway-pki/device-gateway-pki
    user-guide/offline-update/offline-update
    user-guide/el2g
+   user-guide/device-gateway-pki/device-gateway-pki
+   user-guide/rotating-cert
    user-guide/troubleshooting/troubleshooting
 
 .. toctree::