Initial commit: Grav CMS setup with HTML reference material

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/form/templates/forms/fields/url/url.html.twig

@@ -0,0 +1,9 @@
+{% extends "forms/field.html.twig" %}
+
+{% block input_attributes %}
+    type="url"
+    {% if field.size %}size="{{ field.size }}"{% endif %}
+    {% if field.minlength is defined or field.validate.min is defined %}minlength="{{ field.minlength | default(field.validate.min) }}"{% endif %}
+    {% if field.maxlength is defined or field.validate.max is defined %}maxlength="{{ field.maxlength | default(field.validate.max) }}"{% endif %}
+    {{ parent() }}
+{% endblock %}