Win10 right mouse button to add a new markdown file in the new menu

Start creating

Right-click the new menu to add a new markdown file

Create a file:
right click to create a new markdown.reg
content is

Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\.md]
@=".md"

[HKEY_CLASSES_ROOT\.md\ShellNew]
"NullFile"=""

Double click to run

point is

result