start developing quiz challenge thingamabob site.

config/packages/asset_mapper.yaml

@@ -0,0 +1,5 @@
+framework:
+    asset_mapper:
+        # The paths to make available to the asset mapper.
+        paths:
+            - assets/

config/packages/twig.yaml

@@ -0,0 +1,6 @@
+twig:
+    file_name_pattern: '*.twig'
+
+when@test:
+    twig:
+        strict_variables: true