Issue/Feature Description:
The links for the social media channels of SODA Foundation are present on the introduction page.

 - [SODA Website](https://sodafoundation.io/the-foundation/join/)  
 - [SODA Slack](https://sodafoundation.io/slack)
 - [SODA Twitter](https://twitter.com/sodafoundation)  
 - [SODA Mailing List](https://lists.sodafoundation.io)
 - [SODA LinkedIn](https://www.linkedin.com/company/sodafoundation/)

Add Icons for Twitter / GitHub / Linked etc.. icons on Introduction page.

Why this issue to fixed / feature is needed(give scenarios or use cases):
Gives a visual navigation to user rather than just textual.

How to reproduce, in case of a bug:
N/A
Other Notes / Environment Information: (Please give the env information, log link or any useful information for this issue)
N/A