Add more compatibility info and caniuse links to Flexbox docs

Closes #17091

diff --git a/docs/getting-started/flexbox.md b/docs/getting-started/flexbox.md
index 977e0429043874ffb36a70742ecff81fa15a027b..c887fb3fbae85125825287140ace8e899c0f1dd6 100644 (file)
--- a/docs/getting-started/flexbox.md
+++ b/docs/getting-started/flexbox.md
@@ -46,6 +46,6 @@ Alternatively, if you don't need the source Sass files, you may swap the default
 Enabling flexbox means **reduced browser and device support:**
 
 - Internet Explorer 9 and below do not support flexbox.
-- Internet Explorer 10 has a few known quirks.
+- Internet Explorer 10 has a few known quirks (see the "Known issues" tab in [Can I use...](http://caniuse.com/#feat=flexbox)), requires using a prefix, and only supports the syntax from the old 2012 version of the spec.
 
-Please be extra conscious of your user base when enabling flexbox in your project.
+Please be extra conscious of your user base when enabling flexbox in your project. Visit [Can I use...](http://caniuse.com/#feat=flexbox) for details on browser support of flexbox.