fix(config): add defaults

_config.yml

@@ -38,6 +38,30 @@ collections:
     output: true
     permalink: /:path/
 
+defaults:
+  # Theme defaults.
+  # MUST be duplicated from theme's _config.yml
+  # (does not get inherited, unlike the collections hash)
+  - scope:
+      path: ""
+    values:
+      layout: default
+  - scope:
+      path: _posts
+      type: posts
+    values:
+      layout: post
+  - scope:
+      path: _software
+      type: software
+    values:
+      layout: product
+  - scope:
+      path: _specs
+      type: specs
+    values:
+      layout: spec
+
 # These are required for the theme to work:
 
 theme: jekyll-theme-open-project