Add 'Titillium Web' font

Author: alexchorman

_theme/layout.html

@@ -13,6 +13,7 @@
     applications." />
     <meta property="og:image" content="https://bitcoindocumentation.org/_static/bitcoindocs.png" />
     <meta property="og:type" content="website" />
+    <link href="https://fonts.googleapis.com/css?family=Titillium+Web:400,700&display=swap" rel="stylesheet">
     <!-- Global site tag (gtag.js) - Google Analytics -->
     <script async
       src="https://www.googletagmanager.com/gtag/js?id=UA-150112890-1"></script>

_theme/static/sphinxbootstrap4.css_t

@@ -8,6 +8,10 @@ body {
     font-family: Avenir , "Open Sans" , "Helvetica Neue" , Helvetica , Arial , Verdana , Roboto , "游ゴシック" , "Yu Gothic" , "游ゴシック体" , "YuGothic" , "ヒラギノ角ゴ Pro W3" , "Hiragino Kaku Gothic Pro" , "Meiryo UI" , "メイリオ" , Meiryo , "ＭＳ Ｐゴシック" , "MS PGothic" , sans-serif;
 }
 
+html body {
+    font-family: 'Titillium Web', -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,'Noto Sans',sans-serif,'Apple Color Emoji','Segoe UI Emoji','Segoe UI Symbol','Noto Color Emoji'
+}
+
 body div.body {
     max-width: none;
     min-width: auto;
@@ -433,6 +437,11 @@ footer.footer {
     color: rgb(157, 157, 157);
     white-space: nowrap;
 }
+.footermenu a:hover {
+    color: rgb(157, 157, 157);
+    text-decoration: none;
+}
+
 .footer-bottom-link {
     font-size: 17px;
     line-height: 26px;