Add Snowflake to browser addons section

_includes/sections/browser-addons.html

@@ -82,6 +82,18 @@ opera=""
 safari=""
 %}
 
+{% include cardv2.html
+title="Snowflake"
+image="/assets/img/addons/snowflake.png"
+description="<strong>Snowflake</strong> is a system to defeat internet censorship. People who are censored can use Snowflake to access the internet. Their connection goes through Snowflake proxies, which are run by volunteers. If your internet access is not censored, you should consider installing the Snowflake extension to help users in censored networks. There is no need to worry about which websites people are accessing through your proxy. Their visible browsing IP address will match their Tor exit node, not yours."
+website="https://snowflake.torproject.org"
+forum="TODO"
+github="https://gitweb.torproject.org/pluggable-transports/snowflake.git"
+firefox="https://addons.mozilla.org/en-US/firefox/addon/torproject-snowflake"
+chrome="https://chrome.google.com/webstore/detail/snowflake/mafpmfcccpbjnhfhjnllmmalhifmlcie"
+%}
+  
+
 <h2>For Experts Only</h2>
 
 <div class="alert alert-warning" role="alert">