Merge pull request #46 from gaurav-arya/patch-1

Fix sticky doc header

Author: pfitzseb

assets/default/multidoc.css

@@ -248,4 +248,9 @@ html {
     #documenter .docs-main header.docs-navbar.headroom--unpinned.headroom--not-top.headroom--not-bottom {
         top: -100vh;
     }
-}
+    
+    #documenter .docs-main header.docs-navbar {
+        top: var(--navbar-height);
+    }
+}
+