Update README.md

webschik · web-flow · commit d3f11da9c83b · 2017-06-22T17:25:54.000+02:00
diff --git a/README.md b/README.md
@@ -4,6 +4,8 @@
 ## Requirements
 * [Promise API](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Promise), [polyfill](https://github.com/lahmatiy/es6-promise-polyfill)
 * [Encoding API](https://developer.mozilla.org/en-US/docs/Web/API/Encoding_API), [polyfill](https://github.com/inexorabletash/text-encoding)
+* [Object.assing](https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/Object/assign), [polyfill](https://github.com/ljharb/object.assign)
+
 ## Supported formats
 - [x] Text                [file2html-text](https://github.com/file2html/file2html-text)                 (.txt)
 - [x] Images              [file2html-image](https://github.com/file2html/file2html-image)               (.png, .jpg, .gif, .svg, .ico, .wbmp)
