#971 codefolding for markdown

[lmlk]

even markdown is not so hierarchic like e.g. xml, but itcould be possible to fold markdown at:

• headings (##)
• lists
• quotes

needed since "January 25, 2010 " http://www.zdnet.com/geany-supports-markdown-4010014948/ ;) thx

[lmlk]

there are some scripts for vim

• vim-markdown-folding
• vim-voom / markdown.vim

[Neil Hodgson]

Since I don't use markdown, I won't be working on this.