fix: change font

Change request by Lucia

Author: gsanchietti

_includes/head.html

@@ -4,7 +4,6 @@
     <meta name="description" content="nethipedia è la piattaforma che contiene le informazioni e la documentazione relativa ai prodotti e alle soluzioni Nethesis.">
     <meta name="viewport" content="width=device-width">
     <!-- <link rel="icon" href="favicon.ico" type="image/x-icon" /> -->
-    <link href="{{ site.baseurl }}/assets/fonts/OpenSans-Regular.ttf" rel="stylesheet">
 
     <link rel="stylesheet" href="{{ site.baseurl }}/assets/css/hero.css" />
     <link rel="stylesheet" href="{{ site.baseurl }}/assets/css/bulma.min.css" />

assets/css/hero.css

@@ -1,17 +1,12 @@
 @font-face {
-    font-family: OpenSans;
-    src: url(../css/webfonts/OpenSans-Regular.ttf);
-}
-
-@font-face {
-    font-family: Montserrat;
+    font-family: Poppins;
     src: url(../css/webfonts/Montserrat-Regular.ttf);
 }
 
 html,
 body {
     background: #EFF3F4;
-    font-family: OpenSans !important;
+    font-family: Poppins !important;
 }
 
 .hero-body .container {