Merge pull request #198 from klausbreyer/master

wstoettinger · web-flow · commit 22fa9220eb04 · 2017-10-09T18:32:49.000+02:00
Updated README.md for requirement of &lt;!DOCTYPE html&gt;
diff --git a/README.md b/README.md
@@ -37,6 +37,8 @@ Include `parallax.min.js` in your document after including jQuery.
 
 ## Usage
 
+Please note, that `<!DOCTYPE html>` on top of your document is required!
+
 ### Via data attributes
 
 To easily add a parallax effect behind an element, add `data-parallax="scroll"` to the element you want to use, and specify an image with `data-image-src="/path/to/image.jpg"`.
