Add bower_components as it contains the resources used by github pages.

bower_components/select2/docs/_includes/options/compatibility/initial-selection.html

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+<section>
+  <h2 id="initSelection">
+    Old initial selections with <code>initSelection</code>
+  </h2>
+
+  <p class="alert alert-warning">
+    <a href="announcements-4.0.html#removed-initselection" class="alert-link">Deprecated in Select2 4.0.</a>
+    This has been replaced by another option and is only available in the
+    <a href="index.html#builds-full" class="alert-link">full builds</a> of
+    Select2.
+  </p>
+
+  <p>
+    In the past, Select2 required an option called <code>initSelection</code>
+    that was defined whenever a custom data source was being used, allowing
+    for the initial selection for the component to be determined. This has
+    been replaced by the <code>current</code> method on the
+    <a href="#dataAdapter">data adapter</a>.
+  </p>
+
+  <div class="row">
+    <div class="col-sm-6">
+      <dl class="dl-horizontal">
+        <dt>Key</dt>
+        <dd>
+          <code>initSelection</code>
+        </dd>
+
+        <dt>Value</dt>
+        <dd>
+          A function taking a <code>callback</code>
+        </dd>
+      </dl>
+    </div>
+
+    <div class="col-sm-6">
+      <dl class="dl-horizontal">
+        <dt>Adapter</dt>
+        <dd>
+          <code title="select2/data/base">DataAdapter</code>
+        </dd>
+
+        <dt>Decorator</dt>
+        <dd>
+          <code title="select2/compat/initSelection">InitSelection</code>
+        </dd>
+      </dl>
+    </div>
+  </div>
+</section>