Update book_details.html

Fixed the styling and readability

agusyquia_reading/bookshelf/templates/bookshelf/book_details.html

@@ -3,12 +3,13 @@
 
 {% block title %}{{ object.title }}{% endblock %}
 {% block content %}
-<h1>{{ object.title }}</h1>
-<a href="/authors/{{ object.author.pk }}/details">{{ object.author}}</a>
-<br>
-{{ object.publisher }}<br>
-{{ object.year_published }}<br>
-{{ object.ISBN }}<br>
-{{ object.blurb }}<br>
-<a href="/home">Home</a> <a href="/books">Books</a> <a href="/authors">Authors</a>
+    <h1>
+        {{ object.title }}
+    </h1>
+    <a href="/authors/{{ object.author.pk }}/details">{{ object.author}}</a><br>
+    {{ object.publisher }}<br>
+    {{ object.year_published }}<br>
+    {{ object.ISBN }}<br>
+    {{ object.blurb }}<br>
+    <a href="/home">Home</a> <a href="/books">Books</a> <a href="/authors">Authors</a>
 {% endblock %}
\ No newline at end of file