preview-markdown-file-in-vim
Add this to vimrc file. If you want to a live preview, you need to install Markdown Preview Plus extension to Chrome. Then set allow access to file URLs option enabled in the extension’s details page.
" Open markdown files with Chrome.
autocmd BufEnter *.md,*.markdown exe 'noremap <F5> :!start "C:\Users\tomas\AppData\Local\Google\Chrome\Application\chrome.exe" "%:p"<CR>'