some useful command for markdown and LaTeX

  The using of this plug is like this:

  You can use any package manager to install vim-mdtex. With vim-plug, just add current code to your vimrc:

call plug#begin('~/.vim/plugged')
    Plug 'Deeperand/vim-mdtex', {'for': ['tex', 'markdown']}
call plug#end()

The content in file will just load the plug only if the file's type is tex or markdown. Then save vimrc and sorce it (or just restart Vim), and run :PlugInstall.

  Use key such as <localleader>b to bold char under cursor in NORMAL mode or selected content in VISUAL mode. For LaTeX file, it will use \textbf{<text>}; for markdown file, it will use **<text>**.

  Provide command to transfer markdown source code to LaTeX code or inverse. Such as transfer **text** to \textbf{text} or inverse