Add credentials/index.json for remote listing.

Useful for projects that want to use the list of VC Examples in their own UX/tooling.

Author: BigBlueHat

src/credentials/index.liquid

@@ -0,0 +1,14 @@
+---
+layout: false
+permalink: credentials/index.json
+---
+{
+{% for example in examples %}
+  {{ example[0] | json }}: {
+    "credential": "{{ example[0] | append: '/credential.json' }}",
+    "queries": "{{ example[0] | append: '/queries.json' }}",
+    "image": "{{ example[0] | append: '/image.png' }}"
+  }
+  {% if forloop.last == false %},{% endif %}
+{% endfor %}
+}