Add note about JSX/React Fragments

[jimthedev]

Looks like this won't be needed much longer due to https://reactjs.org/blog/2017/11/28/react-v16.2.0-fragment-support.html

This is good news so there should probably be a note about this.

[gajus]

Thanks to Gajus Kuizinas and other contributors who prototyped the Fragment component in open source.

– https://reactjs.org/blog/2017/11/28/react-v16.2.0-fragment-support.html

Thats Okay. My effort has been acknowledged. :-)

[jimthedev]

Haha nice