README.md in sanitize-5.0.0 vs README.md in sanitize-5.1.0

@@ -415,9 +415,20 @@
   a abbr b blockquote br cite code dd dfn dl dt em i kbd li mark ol p pre
   q s samp small strike strong sub sup time u ul var
 ]
 ```
 
+#### :parser_options (Hash)
+
+[Parsing options](https://github.com/rubys/nokogumbo/tree/v2.0.1#parsing-options) supplied to `nokogumbo`.
+
+```ruby
+:parser_options => {
+  max_errors: -1,
+  max_tree_depth: -1
+}
+```
+
 #### :protocols (Hash)
 
 URL protocols to allow in specific attributes. If an attribute is listed here
 and contains a protocol other than those specified (or if it contains no
 protocol at all), it will be removed.