added column width rad/T

added diffusion constants

isotables/isotopapp/templates/diffusion.html

@@ -0,0 +1,29 @@
+{% extends 'base.html' %}
+{% block content %}
+
+<div class="container">
+    <h1>Diffusion coefficient</h1>
+  <h2>  {{ standard_name|safe }} </h2>
+    <table class="table w-auto table-responsive-sm table-striped table-hover table-bordered">
+        <caption>
+          Holz et al. Phys. Chem. Chem. Phys., 2000, 2, 4740-4742
+        </caption>
+        <thead class="table-dark">
+        <tr>
+            <th scope="col">T/K</th>
+            <th scope="col">T/°C</th>
+            <th scope="col">D/m²s⁻¹</th>
+        </tr>
+        </thead>
+        <tbody>
+
+        <tr>
+            <td>{{ temperature_kelvin|stringformat:".2f" }}</td>
+            <td>{{ temperature_celsius|stringformat:".2f" }}</td>
+            <td>{{ diffusion_constant|stringformat:".3e" }}</td>
+        </tr>
+
+        </tbody>
+    </table>
+</div>
+{% endblock %}