Update Doc/library/idle.rst

Split long line.

Co-authored-by: Adam Turner <[email protected]>

Author: terryjreedy

Doc/library/idle.rst

@@ -672,7 +672,8 @@ The following options are available:
 
 .. option:: -c <command>
 
-   Run the specified Python command in the shell window. For example, pass ``-c "print('Hello, World!')"``.
+   Run the specified Python command in the shell window.
+   For example, pass ``-c "print('Hello, World!')"``.
    On Windows, the outer quotes must be double quotes as shown.
 
 .. option:: -d