website: Fix typo "ranges" (#687)

Author: nkohari

Diff for: docs/index.html

@@ -674,7 +674,7 @@ <h1 class=title>The Inter typeface family</h1>
         a wide range of applications, from detailed user interfaces to marketing &amp; signage.
         The Inter typeface family features over <a href="#glyphs">2000&nbsp;glyphs</a>
         covering <a href="#languages">{{lang_count}}&nbsp;languages</a>.
-        Weights ranges from a delicate thin 100 all the way up to a heavy 900. Each glyph has three dedicated designs for weights 100, 400 and 900 to ensure excellent quality at any weight. Optical size ranges from "text" to "display" and there is a true italic variant.
+        Weights range from a delicate thin 100 all the way up to a heavy 900. Each glyph has three dedicated designs for weights 100, 400 and 900 to ensure excellent quality at any weight. Optical size ranges from "text" to "display" and there is a true italic variant.
       </p>
       <p>
         Inter is one of the world's most used typefaces with applications ranging from computer interfaces, advertising &amp; airports, to NASA instrumentation &amp; medical equipment.