Typo in shouldRender documentation

[amessinger]

Currently, shouldRender documentation states that setting its value to true will disable rendering.

ember.js/packages/ember-application/lib/system/application-instance.js

Lines 377 to 379 in 84c8eca

	When this flag is set to `true`, it will disable the entire rendering
	pipeline. Essentially, this puts the app into "routing-only" mode. No
	templates will be rendered, and no Components will be created.

Setting its value to false will actually disable rendering. true is the default value and will cause the application to render.

[Serabe]

Thank you!