fix(markup): fix brand image, logo displays for different sizes

Author: richrdkng

src/markup/body/header.hbs

@@ -2,14 +2,14 @@
   <nav class="navbar navbar-expand-sm navbar-light bg-light">
     <a class="navbar-brand mr-auto" href="#">
       <img
-        class="d-block d-sm-none align-top"
+        class="d-block d-sm-none"
         src="assets/images/logo.svg"
         width="auto"
         height="60"
         alt="">
 
       <img
-        class="d-none d-sm-inline-block align-top"
+        class="d-none d-sm-block"
         src="assets/images/github-lead.svg"
         width="auto"
         height="60"