Fix doc build break in .buckconfig docs
Fix doc build break in .buckconfig docs

Summary:
- Add a `section` param to the soy template for the new `codesign_timeout` option in `.buckconfig`. Documentation will not render without this change.

- Also, make a couple opportunistic fixes to spacing in the Android section of .buckconfig docs.

Reviewed By: ttsugriy

fbshipit-source-id: c68460e

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