[30-10-2022]Accessibility Improvement

[adetyaz]

Summary

I ran the current website on https://wave.webaim.org/ to evaluate the accessibility and some suggestions were made of sections that need to be improved

Fixes #220

List of changes proposed in this PR (pull-request)

Improves accessibility by
[x] Adding alt text to the logo [x] Improve empty links by adding a screen reader only element to improve website experience

What should a reviewer concentrate their feedback on?

• [ ] Everything looks ok?

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[BatoolMM]

Thank you @adetyaz for the wonderful PR to improve accessibility. Can you fix the image links - they aren't working anymore!

[adetyaz]

@BatoolMM No problem, I'll take a look at them. Can I ask which specific images to help tailor out what to do