Link to Oceanic Next theme has expired

[naveedali8086]

One link at following page says that the domain has expired.

https://reactjs.org/docs/introducing-jsx.html

Steps:

1. • Go to above URL
2. • Find the text 'Oceanic Next' (in Tips section at bottom) and click
3. • 'Domain has expired' is received as a response.

[vnoitkumar]

Given PR for that #2636

[threepointone]

Closing as fixed