Option for indenting with spaces

[seancdavis]

Love the ability to stay within the current indentation level when going to the next line. But, can we have the option to indent with spaces instead of tabs? It makes many tasks, like copying and pasting, easier and more consistent.

[WesCossick]

I've created an editor based on lepture's editor that includes this option, along with many others. Check it out here: https://github.com/NextStepWebs/simplemde-markdown-editor

[lepture]

@WesCossick I've added a link to your repo on README

[WesCossick]

Excellent! I believe that you mentioned you wouldn't have time to maintain this project anymore, so I'm hoping SimpleMDE builds upon the excellent foundation you laid and can be maintained going forward.