update logotype (#100)

Author: Arhell

Diff for: docs/assets/css/extra.css

@@ -72,6 +72,11 @@
     border-left: 1.2em solid #C1E6F5;
 }
 
+.md-header__button.md-logo img,
+.md-header__button.md-logo svg {
+    height: 2rem !important;
+}
+
 .md-header__button.md-logo img,
 .md-header__button.md-logo svg {
     height: 2rem !important;