added style

Author: Imanflow

doc/source/themes/nature_with_gtoc/static/nature.css_t

@@ -201,6 +201,11 @@ div.body p, div.body dd, div.body li {
 div.admonition p.admonition-title + p {
     display: inline;
 }
+git
+div.deprecated {
+    background-color: #ffe4e4;
+    border: 1px solid #f66;
+}
 
 div.highlight{
     background-color: white;