Adding video link to BitOps to; README, index, getting-started

[PhillypHenning]

Description

Updating documentation with BitOps intro video.

Type of change

Please delete options that are not relevant.

• Documentation update

How Has This Been Tested?

Locally tested with docker-compose

Logs

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation

[runforesight]

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✅  CI workflow has finished in 35 seconds and finished at 18th Jan, 2023.

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[arm4b]

Suggested change

	<a class="md-button md-button--primary" href="getting-started">Show me the doc</a>
	<a class="md-button md-button--primary" href="https://youtu.be/BiytYu3EefY">Show me a video</a>
	<a class="md-button md-button--primary" href="getting-started">Show me the doc</a>

One CTA button is enough.

Instead of "show me the video" button, the idea was to replace the big logo block and adding a video iframe of a similar size. Big BitOps logo is not informational and just takes a precious space.

Additionally, bitops logo image might need a rework to make it compact and inline <image> BitOps so we still have it somewhere.

I can work on that, if you think it becomes too involved. Just let me know, can do it after a landing page.

[mickmcgrath13]

at least change the linked image to pull from youtube

[mickmcgrath13]

any reason not to put this embed on the front page of bitops.sh?

[arm4b]

Let's merge the Readme update here and do the landing page in the next PR: #389 as I'd like more there with the list of bitops values and to align that w video

[arm4b]

Merging.
Let's do more on the landing page in the next PR: #389