[Documentation] WCAG AA standards not met for all docs pages

[MaanavD]

Describe the documentation issue

https://webcompliance.trafficmanager.net/ScanResultsApi/GetAccessibilityScanConsolidatedReport?siteId=ee4cf6e9-d133-44ac-08df-08dc29611169

^According to this dashboard, almost all our docs pages have accessibility issues related to code snippets and other sections. WIP, self-assigned.

Page / URL

https://onnxruntime.ai/docs

[natke]

@MaanavD we can look at upgrading or changing the theme

[MaanavD]

@natke Yeah that's the plan, just writing it here as slated work :)

[natke]

Nice!