Generate documentation

(cherry picked from commit ff8bda7)

# Conflicts:
#	package.json

API.md

@@ -311,7 +311,7 @@ keyboard.
 
 #### Parameters
 
-*   `options` **[Object][72]?** optional tab behaviors
+*   `options` **[Object][72]?** optional tab behaviors (optional, default `{}`)
 
     *   `options.backwards` **[boolean][71]** indicates if the the user navigates backwards (optional, default `false`)
     *   `options.unRestrainTabIndex` **[boolean][71]** indicates if tabbing should throw an error when tabindex is greater than 0 (optional, default `false`)
@@ -891,7 +891,7 @@ Sets up the basic framework used by application tests.
 
 *   `context` **[Object][72]** the context to setup
 
-Returns **[Promise][66]<[Object][72]>** resolves with the context that was setup
+Returns **[Promise][66]\<void>** resolves when the context is set up
 
 ### validateErrorHandler
 
@@ -1018,7 +1018,7 @@ Returns deprecations which have occured so far for a the current test context
 
 ### Parameters
 
-*   `callback` **CallableFunction?** The callback that when executed will have its DeprecationFailure recorded
+*   `callback` **[Function][79]?** The callback that when executed will have its DeprecationFailure recorded
 
 ### Examples
 
@@ -1076,7 +1076,7 @@ Returns warnings which have occured so far for a the current test context
 
 ### Parameters
 
-*   `callback` **CallableFunction?** The callback that when executed will have its warnings recorded
+*   `callback` **[Function][79]?** The callback that when executed will have its warnings recorded
 
 ### Examples
 

package.json

@@ -29,7 +29,7 @@
     "prepack": "yarn build",
     "postpack": "rimraf addon-test-support/**/*.js public-types",
     "clean": "git clean -x -f",
-    "docs": "documentation build --document-exported \"addon-test-support/@ember/test-helpers/index.js\" --config documentation.yml --markdown-toc-max-depth 3 -f md -o API.md",
+    "docs": "yarn build && documentation build --document-exported \"addon-test-support/@ember/test-helpers/index.js\" --config documentation.yml --markdown-toc-max-depth 3 -f md -o API.md",
     "lint": "npm-run-all lint:*",
     "lint:js": "eslint --cache .",
     "lint:ts": "tsc --noEmit && tsc --noEmit --project type-tests",