Tables may need additional padding

[rparrett]

Compare the way the code block interacts with other elements vs. the table. The content below the table here:

Seems awkwardly close to the table.

I am not sure if tables should have padding: 10px similar to .media-content pre, or unequal padding/margins similar to p. We should look at our usages of tables alongside paragraphs and code blocks and make sure whatever we do doesn't result in awkwardly large gaps.

The screenshot is from https://bevyengine.org/learn/migration-guides/0-13-to-0-14/ with #1398.