Use Playfair font with Latin, Latin Extended, and Cyrillic

source/scss/fonts.scss

@@ -5,8 +5,8 @@
   font-style: normal;
   font-weight: 700;
   src: local(''),
-       url('../fonts/playfair-display-v21-latin-700.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
+       url('../fonts/playfair-display-v21-latin-ext_latin_cyrillic-700.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('../fonts/playfair-display-v21-latin-700.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
+       url('../fonts/playfair-display-v21-latin-ext_latin_cyrillic-700.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }
 
 /* playfair-display-900 - latin */
@@ -16,6 +16,6 @@
   font-style: normal;
   font-weight: 900;
   src: local(''),
-       url('../fonts/playfair-display-v21-latin-900.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
+       url('../fonts/playfair-display-v21-latin-ext_latin_cyrillic-900.woff2') format('woff2'), /* Chrome 26+, Opera 23+, Firefox 39+ */
-       url('../fonts/playfair-display-v21-latin-900.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
+       url('../fonts/playfair-display-v21-latin-ext_latin_cyrillic-900.woff') format('woff'); /* Chrome 6+, Firefox 3.6+, IE 9+, Safari 5.1+ */
 }