add khand font (#29192)

README

@@ -119,6 +119,13 @@ copyright notices:
   #
   # https://www.fontsquirrel.com/license/montserrat
 
+* Khand font
+  # Copyright (c) 2014, Indian Type Foundry (info@indiantypefoundry.com).
+  #
+  # This Font Software is licensed under the SIL Open Font License, Version 1.1.
+  #
+  # https://www.fontsquirrel.com/license/khand
+
 ~~~~
 
 Some theme variant files have their own specific licenses; refer to

static/includes/_font-khand.scss

@@ -0,0 +1,15 @@
+@mixin khand-font($type, $weight) {
+	@font-face {
+		font-family: 'Khand';
+		src: url('../fonts/Khand/khand-#{$type}-webfont.woff2') format('woff2'),
+		     url('../fonts/Khand/khand-#{$type}-webfont.woff') format('woff');
+		font-weight: $weight;
+		font-style: normal;
+	}
+}
+
+@include khand-font('light', 300);
+@include khand-font('regular', 400);
+@include khand-font('medium', 500);
+@include khand-font('semibold', 600);
+@include khand-font('bold', 700);