added subscriptions

assets/svg/subscribe-button-icon.svg

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg width="100%" height="100%" viewBox="0 0 24 24" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;">
+    <path d="M21.698,10.658L24,12L11.998,19L0,12L2.301,10.658L11.998,16.316L21.698,10.658ZM11.998,21.315L2.301,15.657L0,17L11.998,24L24,17L21.698,15.658L11.998,21.315ZM24,7L11.998,-0L0,7L11.998,14L24,7Z" style="fill:white;fill-rule:nonzero;"/>
+</svg>