Don't show Ingredients/Steps h3 when there are none

templates/recipe.html

@@ -17,14 +17,18 @@
 {{getrecipe(subrecipe)}}
 {% endfor %}
 <h1>{{rec.title}}</h1>
+{% if rec.ingredients|length != 0 %}
 <h3>Ingredients</h3>
 {% for ing in rec.ingredients %}
     <li>{{ingredient(ing)}}</li>
 {% endfor %}
+{% endif %}
+{% if rec.steps|length != 0 %}
 <h3>Steps</h3>
 {% for step in rec.steps %}
     <li>{{ step }}</li>
 {% endfor %}
+{% endif %}
 <hr>
 {%- endmacro %}