Improvement: `content` not a key in solidity `input description` in solidity official doc (except under `destructible`) .

Please include the key `content` along with a description .

Reference (see section `3.13.3` , `input description` ):
`https://docs.soliditylang.org/_/downloads/en/latest/pdf/`

Start with section 3.13.3, “input description,” in the linked Solidity documentation, then locate the corresponding documentation source in solc-js. Add the missing `content` key description alongside its existing documentation, including its relationship to `destructible`, and verify the rendered documentation reflects the reference.

Written by the indexing model from the issue text.