Small update to the documentation for executing custom scripts.

Author: brdeyo

website/docs/guides/0021-custom-script-execution.md

@@ -33,7 +33,7 @@ C:\Users\AnyUser\VirtualClient\win-x64> VirtualClient.exe "./packages/custom-scr
 # Linux Examples
 # ---------------------------
 ~VirtualClient/linux-arm64$ chmod +x ./VirtualClient
-~VirtualClient/linux-arm64$ ./VirtualClient "./packages/custom-scripts.1.0.0/execute_openssl.py --log-dir ./logs/openssl_test"
+~VirtualClient/linux-arm64$ ./VirtualClient --command="./packages/custom-scripts.1.0.0/execute_openssl.py --log-dir ./logs/openssl_test" --log-to-file
 ```
 
 ## Step 2b: Execute Custom Scripts Downloaded from a Package Store
@@ -62,10 +62,10 @@ In addition to the required `Package` parameter, the following describes additio
 # Note that the "./packages" and "./logs" paths are relative to the Virtual Client executable/application directory.
 # Also note that any forward-slashes in the paths are handled as backslashes on Windows systems. The use of forward-slashes
 # is merely for consistency (in look and feel) across platforms on the command line.
-C:\Users\AnyUser\VirtualClient\win-x64> VirtualClient.exe "./packages/custom-scripts.1.0.0/execute_openssl.py --log-dir ../logs/openssl_test" --parameters="Package=custom-scripts.1.0.0.zip" --packages="https://anystorage.blob.core.windows.net/..." --log-to-file
+C:\Users\AnyUser\VirtualClient\win-x64> VirtualClient.exe --command="./packages/custom-scripts.1.0.0/execute_openssl.py --log-dir ../logs/openssl_test" --parameters="Package=custom-scripts.1.0.0.zip" --packages="https://anystorage.blob.core.windows.net/..." --log-to-file
 
 # Linux Examples
 # ---------------------------
 ~VirtualClient/linux-arm64$ chmod +x ./VirtualClient
-~VirtualClient/linux-arm64$ ./VirtualClient "./packages/custom-scripts.1.0.0/execute_openssl.py --log-dir ../logs/openssl_test" --parameters="Package=custom-scripts.1.0.0.zip" --packages="https://anystorage.blob.core.windows.net/..." --log-to-file
+~VirtualClient/linux-arm64$ ./VirtualClient --command="./packages/custom-scripts.1.0.0/execute_openssl.py --log-dir ../logs/openssl_test" --parameters="Package=custom-scripts.1.0.0.zip" --packages="https://anystorage.blob.core.windows.net/..." --log-to-file
 ```