Bad color contrast for code elements

[jchristgit]

As pointed out in #1363:

The color s for <code> elements (#ff7990 foreground, #464951 background) is 3.59:1 , which is below the minimum of 4.5:1.

Users with low vision may find it difficult to distinguish this text. Tools such as the WebAIM Color Contrast Checker can be used to ensure the contrast ratios are sufficient for most people.

This affects the events, contributing, FAQ, Rules and code of conduct pages.