Export default in server docs #592

Job	Run time
Docs	1m 13s
Floating Dependencies	1m 12s
Tests - Basic App	3m 51s
Tests	1m 2s
Tests - App That Excludes Mirage	54s
ember-lts-3.28	1m 30s
ember-lts-4.4	1m 28s
ember-lts-4.8	1m 28s
ember-lts-4.12	1m 8s
ember-release	1m 30s
ember-beta	1m 5s
ember-canary	1m 12s
	17m 33s

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