🔧 Show the directory name in the terminal tab title
🔧 Show the directory name in the terminal tab title

Update configurations from `bash_prompt` so that the title of
the terminal tab is set to the name of the directory the user
is in rather than the whole path.

Thank you, @stevemao and @eitanpo!

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Ref:

  * https://github.com/mathiasbynens/dotfiles/pull/623
  * https://github.com/mathiasbynens/dotfiles/pull/625

cescoferraro/dotfiles,cescoferraro/dotfiles,alrra/dotfiles,cescoferraro/dotfiles