softdevice_controller: doc: Revert back to tech edited doc

See ee0d1c6

Signed-off-by: Rubin Gerritsen <[email protected]>

Author: rugeGerritsen

softdevice_controller/README.rst

@@ -1,7 +1,7 @@
 .. _softdevice_controller:
 
 SoftDevice Controller
-###########################
+#####################
 
 The |controller| is an RTOS-agnostic library built for the Nordic Semiconductor nRF52 and nRF53 Series.
 It supports Bluetooth 5.
@@ -40,6 +40,8 @@ Variants for the Arm Cortex-M33 processor are available as soft-float only.
 .. note::
    For Connectionless CTE Advertising, angle of arrival (AoA) is supported, but angle of departure (AoD) is not.
 
+.. _sdc_proprietary_feature_support:
+
 Proprietary feature support:
 
 +--------------------------+-----------------+--------------+-----------+-----------------------------------------------------------------------------+