docs($session): #784 - document option, start feature page

docs/api/options.jmd

@@ -16,6 +16,7 @@
     <li><a href="#resumeparamnames-option">resume.paramNames</a></li>
     <li><a href="#retry-option_1">retry</a></li>
     <li><a href="#request-option_1">request</a></li>
+    <li><a href="#session-option">session</a></li>
     <li><a href="#text-option_1">text</a></li>
     <li><a href="#validation-option">validation</a></li>
     <li><a href="#validationimage-option">validation.image</a></li>
@@ -230,6 +231,19 @@ always used and shared among all buttons for a particular instance.""", "info",
 
 ----
 
+### `session` option
+
+See the [Initialize File List feature page](../features/session.html) for more details.
+
+{{ options_table(
+    (
+        ("endpoint", "`String`", "`null`", "If non-null, Fine Uploader will send a GET request on startup to this endpoint, expecting a JSON response containing data about the initial file list to populate."),
+        ("refreshOnReset", "`Boolean`", "`true`", "Set this to `false` if you do not want the file list to be retrieved from the server as part of a reset."),
+    )
+) }}
+
+----
+
 ### `text` option
 
 {{ options_table(

docs/features/session.jmd

@@ -0,0 +1,26 @@
+{% extends "_templates/base.html" %}
+{% set page_title = "Initialize File List" %}
+{% block content %}
+{% markdown %}
+# Initialize File List {: .page-header }
+
+### Summary
+TODO
+
+### Use Cases
+TODO
+
+### Fine Uploader UI Support
+TODO
+
+### Fine Uploader Core Support
+TODO
+
+### File Uploader S3 Support
+TODO
+
+### Server
+TODO
+
+{% endmarkdown %}
+{% endblock %}