Update Doc/using/cmdline.rst

Co-authored-by: Brian Schubert <brianm.schubert@gmail.com>

Author: RoryGlenn

Doc/using/cmdline.rst

@@ -528,8 +528,10 @@ Miscellaneous options
 
       @py -x "%~f0" %* & exit /b
 
-   Or, to specify the path to the Python interpreter explicitly::
+   Or, to specify the path to the Python interpreter explicitly:
 
+   .. code-block:: batch
+   
       @"C:\Path\to\python.exe" -x "%~f0" %* & exit /b
 
    Unlike a shebang line which is a Python comment, this line is not valid