Replace sites with monitoring locations in description tag

wdfn-server/waterdata/templates/state_list.html

@@ -3,7 +3,7 @@
 {% set page_title = '{{ state_name }} water conditions' %}
 
 {% block extra_head_tags %}
-    <meta name="description" content="Explore USGS sites within {{ state_name }} that collect continuously sampled water data"
+    <meta name="description" content="Explore USGS monitoring locations within {{ state_name }} that collect continuously sampled water data"
 {% endblock %}
 
 {% block page_css %}