Update model.html

wiki/pages/model.html

@@ -37,7 +37,8 @@
 
 {% extends "layout.html" %}
   
-{% block title %}Project Description{% endblock %}
+{% block title %}Model{% endblock %}
+{% block lead %}Explain your model's assumptions, data, parameters, and results in a way that anyone could understand.{% endblock %}
 
 {% block page_content %}