Merge pull request #921 from ember-learn/footer

update to latest styleguide to fix the footer

Author: mansona

package.json

@@ -100,7 +100,7 @@
     "ember-showdown-shiki": "^1.2.1",
     "ember-sinon": "^4.1.1",
     "ember-source": "~3.28.8",
-    "ember-styleguide": "^8.3.0",
+    "ember-styleguide": "^11.0.3",
     "ember-svg-jar": "^2.4.2",
     "ember-template-lint": "^3.15.0",
     "ember-test-selectors": "^6.0.0",