doc: update nRF54LM20 DK documentation links

Update links to nRF54LM20 DK documentation.

Signed-off-by: Michal Leksinski <michal.leksinski@nordicsemi.no>

Author: milewr

docs/index.rst

@@ -27,5 +27,4 @@ In combination with the |NCS|, the |addon| allows for development of low-power c
    samples/index
    lib/index
    tools
-   software-maturity
    release-notes

docs/links.txt

@@ -21,7 +21,7 @@
 
 .. _`Developing with nRF52 Series`: https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/nrf/app_dev/device_guides/nrf52/index.html
 .. _`Developing with nRF53 Series`: https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/nrf/app_dev/device_guides/nrf53/index.html
-.. _`Developing with nRF54L Series`: https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/nrf/app_dev/device_guides/nrf54l/index.html
+.. _`Developing with nRF54L Series`: https://docs.nordicsemi.com/bundle/ncs-latest/page/nrf/app_dev/device_guides/nrf54l/index.html
 .. _`Developing with Front-End Modules`: https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/nrf/app_dev/device_guides/fem/index.html
 .. _`Developing with the nRF21540 EK`: https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/nrf/app_dev/device_guides/fem/21540ek_dev_guide.html
 .. _`Building and programming with nRF21540 EK`: https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/nrf/app_dev/device_guides/fem/21540ek_dev_guide.html
@@ -83,6 +83,7 @@
 .. _`nrf52840dongle`: https://docs.nordicsemi.com/bundle/ncs-latest/page/zephyr/boards/nordic/nrf52840dongle/doc/index.html#nrf52840dongle-nrf52840
 .. _`nrf5340dk`: https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/zephyr/boards/nordic/nrf5340dk/doc/index.html
 .. _`nrf54l15dk`: https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/zephyr/boards/nordic/nrf54l15dk/doc/index.html
+.. _`nrf54lm20dk`: https://docs.nordicsemi.com/bundle/ncs-latest/page/zephyr/boards/nordic/nrf54lm20dk/doc/index.html
 
 .. _`USB DFU (Device Firmware Upgrade)`: https://docs.nordicsemi.com/bundle/ncs-3.1.0/page/zephyr/samples/subsys/usb/dfu/README.html
 

docs/memory.rst

@@ -293,7 +293,7 @@ Values are provided in bytes (B).
 
    .. group-tab:: nRF54LM20
 
-      The following table lists memory requirements for the `nRF54LM20 <Developing with nRF54LM20_>`_ device.
+      The following table lists memory requirements for the `nRF54L Series <Developing with nRF54L Series_>`_ device.
 
       +----------------------------------------------------------------+-------------------------------+------------------------------+--------------------------------+-------------------------------+
       | Sample                                                         | ``main`` thread stack usage   | ``main`` thread stack size   | ``zboss`` thread stack usage   | ``zboss`` thread stack size   |