See #430

docs: Updated Readme to list new ADD_DATA_URI_TAGS flag

Author: cure53

README.md

@@ -173,6 +173,9 @@ var clean = DOMPurify.sanitize(dirty, {ADD_TAGS: ['my-tag']});
 // extend the existing array of attributes
 var clean = DOMPurify.sanitize(dirty, {ADD_ATTR: ['my-attr']});
 
+// extend the existing array of tags that can use Data URIs
+var clean = DOMPurify.sanitize(dirty, {ADD_DATA_URI_TAGS: ['a', 'area']});
+
 // prohibit HTML5 data attributes (default is true)
 var clean = DOMPurify.sanitize(dirty, {ALLOW_DATA_ATTR: false});