line-height-base in docs

docs/assets/scss/_layout.scss

@@ -38,7 +38,7 @@
         > th,
         > td {
           padding: $table-cell-padding;
-          line-height: $line-height-base;
+          line-height: $line-height;
           vertical-align: top;
           // border-top: 1px solid $table-border-color;
           border: 1px solid $table-border-color;