add form for editing artist

kontor-api/src/templates/comic/artist_detail.html

@@ -51,7 +51,11 @@
     </table>
   </div>
   <div class="row">
-    <div><a href="/comic/artists" class="btn btn-outline-primary btn-sm active" role="button" aria-pressed="true">Back to list</a></div>
+    <div>
+      <a href="/comic/artists" class="btn btn-outline-primary btn-sm active" role="button" aria-pressed="true">Back to list</a>
+      <a href="/comic/artist/edit/{{artist.id}}" class="btn btn-outline-primary btn-sm active" role="button" aria-pressed="true">Edit</a>
+      <a href="/comic/artist/delete/{{artist.id}}" class="btn btn-outline-danger btn-sm active" role="button" aria-pressed="true">Delete</a>
+    </div>
   </div>
 </div>
 {% endblock %}

kontor-api/src/templates/comic/artist_edit.html

@@ -0,0 +1,32 @@
+{% extends "shared/base.html" %}
+
+
+{% block title %}
+  <title>Edit Artist</title>
+{% endblock %}
+
+{% block content %}
+  <div class="container">
+    <div class="row">
+      <div class="text-danger font-weight-bold">
+        {% for error in errors %}
+          <li>{{error}}</li>
+        {% endfor %}
+      </div>
+    </div>
+
+    <div class="row my-5">
+      <h3 class="text-center display-4">Edit an Artist entry</h3>
+      <form method="POST">
+        <div class="mb-3">
+          <input type="text" required class="form-control" name="artist.name" value="{{artist_name}}" placeholder="Artist name here">
+          <input type="text" required class="form-control" name="artist.link" value="{{artist_link}}" placeholder="Web link for artist here">
+        </div>
+        <div>
+            <button type="submit" class="btn btn-primary">Submit</button>
+            <button type="cancel" class="btn btn-primary">Cancel</button>
+        </div>
+      </form>
+    </div>
+  </div>
+{% endblock %}