doc: Update sdc reference in overview hld
Clarify that sdc predefined scenario is no longer supported
Minor cleanup
@@ -4,17 +4,17 @@ ACRN High-Level Design Overview
###############################
ACRN is an open-source reference hypervisor (HV) that runs on top of
-:ref:`Intel platforms <hardware>` for heterogeneous scenarios such as the
-Software-defined Cockpit (SDC), or the In-vehicle Experience (IVE) for
-automotive, or HMI & real-time OS for industry. ACRN provides embedded
-hypervisor vendors with a reference I/O mediation solution with a
-permissive license and provides auto makers and industry users a
+:ref:`Intel platforms <hardware>` for heterogeneous use cases such as
+Software-defined Cockpit (SDC), or In-vehicle Experience (IVE) for
+automotive, or human-machine interface (HMI) and real-time OS for industry.
+ACRN provides embedded hypervisor vendors with a reference I/O mediation
+solution with a permissive license and provides auto makers and industry users a
reference software stack for corresponding use.
-ACRN Supported Use Cases
-************************
+ACRN Use Cases
+**************
-Software Defined Cockpit
+Software-Defined Cockpit
========================
The SDC system consists of multiple systems: the instrument cluster (IC)
@@ -51,9 +51,9 @@ a customized IC/IVI/RSE.
Industry Usage
==============
-A typical industry usage would include one Windows HMI + one RT VM:
+A typical industry usage includes one Windows HMI + one real-time VM (RTVM):
-- Windows HMI as a guest OS with display to provide Human Machine Interface
+- Windows HMI as a guest OS with display to provide human-machine interface
- RTVM that runs a specific RTOS on it to handle
real-time workloads such as PLC control
