Add new partner

wiki/src/partners.html

@@ -34,6 +34,7 @@ Are you an individual and want to help Tails? [[We warmly welcome your donations
     <p class="partner partner-size-4" title="DeepOnion - 0.154 btc"><a href="https://deeponion.org/">[[!img lib/partners/deeponion.png link="no"]]</a></p><!-- 2018-08-28 -->
     <p class="partner partner-size-4" title="The Best VPN - $1 000"><a href="https://thebestvpn.com/" target="_blank">[[!img lib/partners/bestvpn.png link="no"]]</a></p><!-- 2019-05-20 -->
     <p class="partner partner-size-4" title="VPN Review - $1 000"><a href="https://vpn-review.com/" target="_blank">[[!img lib/partners/vpnreview.png link="no"]]</a></p><!-- 2019-06-17 -->
+    <p class="partner partner-size-4" title="Cooltechzone - $1 000"><a href="https://cooltechzone.com/" target="_blank">[[!img lib/partners/cooltechzone.png link="no"]]</a></p><!-- 2019-07-04 -->
 </div>
 
 <p class="amount-range">in-kind</p>