Fix hardcoded month on Financials page

tildes/tildes/templates/financials.jinja2

@@ -12,7 +12,7 @@
 {% block main_heading %}Tildes financials{% endblock %}
 
 {% block content %}
-<p>This page is a view into Tildes's financials: operating expenses, income from the various donation methods, and the overall goal for monthly donations. Currently, it only contains data for November 2019, but more historical data will be available eventually.</p>
+<p>This page is a view into Tildes's financials: operating expenses, income from the various donation methods, and the overall goal for monthly donations. Currently, it only contains data for {{ current_time.strftime("%B %Y") }}, but more historical data will be available eventually.</p>
 
 <p>Amounts on this page are in USD unless otherwise noted. Even though Tildes is a Canadian non-profit, many of its costs and donations are in USD. People from other parts of the world are also generally most familiar with the relative value of USD, so using it makes this info more understandable to everyone.</p>