minor style tweaks

docs/assets/css/site.css

@@ -4669,14 +4669,14 @@ h6 {
   color: #333333;
 }
 #social-buttons {
-  margin-bottom: 25px;
+  margin-bottom: 30px;
   text-align: center;
 }
 #social-buttons .btn {
   font-family: museo-slab, "Helvetica Neue", Helvetica, Arial, sans-serif;
   font-weight: bold;
   font-size: 14px;
-  padding: 3px 10px 0;
+  padding: 4px 10px 1px;
   line-height: 21px;
 }
 #social-buttons .count.btn {

docs/assets/less/site.less

@@ -129,13 +129,13 @@ h1, h2, h3, h4, h5, h6 { font-family: @serifFontFamily; }
 }
 
 #social-buttons {
-  margin-bottom: 25px;
+  margin-bottom: 30px;
   text-align: center;
   .btn {
     font-family: @serifFontFamily;
     font-weight: bold;
     font-size: @baseFontSize;
-    padding: 3px 10px 0;
+    padding: 4px 10px 1px;
     line-height: @baseLineHeight;
   }
   .count.btn {