Changed assets download links

Fixes #5

_includes/design/assets.html

@@ -11,7 +11,7 @@
             <span class="text-left color-gray-2 rb-isBold">Default</span>
             <span class="text-right color-primary rb-isBold" style="float: right;">
               <a target="_blank"
-                 href="https://demo.identihub.co/assets/SecureDrop_ICONS_62.svg"
+                 href="https://demo.identihub.co/assets/I2P_ICONS_1.svg"
                  class="button btn btn-sm btn-pill btn-outline-medium">Download SVG</a>
             </span>
         </p>
@@ -26,7 +26,7 @@
             <span class="text-left color-gray-2 rb-isBold">White</span>
             <span class="text-right color-primary rb-isBold" style="float: right;">
               <a target="_blank"
-                 href="https://demo.identihub.co/assets/SecureDrop_ICONS_6.svg"
+                 href="https://demo.identihub.co/assets/I2P_ICONS_3.svg"
                  class="button btn btn-sm btn-pill btn-outline-medium">Download SVG</a>
             </span>
         </p>
@@ -44,7 +44,7 @@
             <div class="row">
             <span class="text-right color-primary rb-isBold" style="float: left;">
               <a target="_blank"
-                 href="https://demo.identihub.co/assets/SecureDrop_ICONS_63.svg"
+                 href="https://demo.identihub.co/assets/I2P_ICONS_5.svg"
                  class="button btn btn-sm btn-pill btn-outline-medium">Download SVG</a>
             </span>
             </div>
@@ -60,7 +60,7 @@
             <div class="row">
             <span class="text-right color-primary rb-isBold" style="float: left;">
               <a target="_blank"
-                 href="https://demo.identihub.co/assets/SecureDrop_ICONS_9.svg"
+                 href="https://demo.identihub.co/assets/I2P_ICONS_7.svg"
                  class="button btn btn-sm btn-pill btn-outline-medium">Download SVG</a>
             </span>
             </div>