Fix typo

themes/common/templates/news/index.html

@@ -16,7 +16,7 @@
     <div class='summary'>
       <h2 id='update-2021-06-30' class='p-name'>New blocking rules!</h2>
       <ul class='summary-list'>
-        <li>Laura blocked one blocker blockers, fixed three sites and blocked five new trackers.</li>
+        <li>Laura blocked one blocker blocker, fixed three sites and blocked five new trackers.</li>
         <li><strong>Blocked blocker blocker:</strong> (another one!) on ca.investing.com (<a
             href='https://source.small-tech.org/better/site/issues/151'>see issue #151</a>.)</li>
         <li><strong>Fix:</strong> content and search now displays correctly on weather.com (<a