Merge pull request #12146 from hasezoey/docsDeprecated

docs(api_split): add basic DEPRECATED output

Author: vkarpov15

docs/api_split.pug

@@ -50,6 +50,8 @@ block content
       h3(id=prop.anchorId)
         a(href='#' + prop.anchorId)
           | #{prop.string}
+      if prop.deprecated 
+        <span class="deprecated">~DEPRECATED~</span>
       if prop.param != null
         h5 Parameters
         ul.params

docs/css/api.css

@@ -155,3 +155,7 @@ hr.separate-api {
   text-transform: uppercase;
   letter-spacing: .2px;
 }
+
+.deprecated {
+  color: #ff0000;
+}