docs: fixes Typos/grammar in markdown-features-code-blocks.mdx - #12475

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Caution: `regexp` also has a named export `configs`. Check if you meant to write `import {configs} from 'eslint-plugin-regexp'` instead

Assignment to function parameter 'pathname'

Assignment to function parameter 'pathname'

Capture group '(next)' should be converted to a named or non-capturing group

Capture group '(\d\.\d\.\d)' should be converted to a named or non-capturing group

Capture group '((\d\.\d\.\d)|(next))' should be converted to a named or non-capturing group

Object pattern argument should be typed

Missing return type on function

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