webpage edits/updates to include deployment version and/or standard ioos.us header/footer

[MathewBiddle]

Now that we are only publishing releases of the jupyter book, we should include something in the footer that says what release is currently represented on the website.

Probably stick that in the extra_footer:

ioos_code_lab/jupyterbook/_config.yml

Lines 48 to 56 in 6a502e0

	extra_footer: <a href=https://ioos.noaa.gov> ioos.noaa.gov </a> &nbsp
	<a href=https://www.facebook.com/usioosgov> Facebook </a> &nbsp
	<a href=https://www.twitter.com/usioosgov> Twitter </a> &nbsp
	<a href="mailto:data.ioos@noaa.gov">Contact Us</a> <br>
	U.S. Integrated Ocean Observing System Program <br>
	1315 East-West Highway <br>
	SSMC3, 2nd Floor <br>
	Silver Spring, MD 20910 <br>
	(240) 533-9444

Thinking about the footer makes me think about the ioos.us work on creating standard header/footers. Andy put together some great documentation on how to do that here. We should explore how to add that to the JupyterBook webpage as well.

[Banshri-17]

is this issue is still available i want to solve this issue