This is command plugin for SynWrite editor.
It converts Markdown text to HTML (using this Python library), and then opens HTML file in browser.
If selection is made then only selection is processed, otherwise entire file is processed.
Plugin has command in SynWrite menu "Tools - Plugins".
You can use file "markdown.cfg" to init set of Markdown extensions. Possible quoted values (comma-separated) are:
Just open plugin's zip-file in SynWrite, and confirm installation.
Default hotkey can be changed using SynWrite command "Options - Advanced - Edit file SynPlugins.ini".
Author: Alexey T. (SynWrite author)