Remove TODO to check my autocommand templates

I found the vimrc of Steve Losh (https://bitbucket.org/sjl/dotfiles/src/141b96496989091fce4aa5165946f94d31c2374f/vim/vimrc?at=default), who is the author of Learn Vimscript the Hard Way, and confirmed that he writes autocommands basically the same way as I write them. My templates look like a good and safe way to write autocommands.
Add default indent settings for markdown

I’m not sure whether the value of tabstop should be 8 or 4, but I’ll try this for now.

I chose these settings so that I can easily indent code by four spaces.
Update all plugins

With Vundle’s :PluginUpdate