fix(docs): retroactively note 2.0.0-beta.1 api change in history file (#194)

Signed-off-by: Dustin Popp <[email protected]>

Author: dpopp07

HISTORY.md

@@ -27,6 +27,7 @@
   * Change `dotfiles` option default to `'ignore'`
   * Drop support for Node.js 0.8
   * Remove `hidden` option; use `dotfiles` option instead
+  * Remove `mime` export; use `mime-types` package instead
   * deps: [email protected]
     - Use `mime-types` for file to content type mapping
     - deps: [email protected]