docs: fix a typo.

Author: chriskrycho

tests/dummy/app/templates/docs/configuration.md

@@ -6,7 +6,7 @@ By default, ember-cli-typescript installs the [ember-cli-typescript-blueprints][
 
 [blueprints]: https://github.com/typed-ember/ember-cli-typescript-blueprints
 
-If you want to stick with the normal JavaScript blueprints—say, because your team isn't ready to dive into the deep end with making *everything* typescript yet—you can simply uninstall the blueprints package.
+If you want to stick with the normal JavaScript blueprints—say, because your team isn't ready to dive into the deep end with making *everything* TypeScript yet—you can simply uninstall the blueprints package.
 
 With yarn: