build: fix docs

[trim21]

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 77.67%. Comparing base (b49ae1b) to head (a97e65b). Report is 2 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #472 +/- ## ======================================= Coverage 77.67% 77.67% ======================================= Files 14 14 Lines 1505 1505 ======================================= Hits 1169 1169 Misses 336 336 ``` | [Flag](https://app.codecov.io/gh/trim21/transmission-rpc/pull/472/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Trim21) | Coverage Δ | | |---|---|---| | [3.10](https://app.codecov.io/gh/trim21/transmission-rpc/pull/472/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Trim21) | `77.67% <ø> (ø)` | | | [3.11](https://app.codecov.io/gh/trim21/transmission-rpc/pull/472/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Trim21) | `77.67% <ø> (ø)` | | | [3.12](https://app.codecov.io/gh/trim21/transmission-rpc/pull/472/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Trim21) | `77.67% <ø> (ø)` | | | [3.8](https://app.codecov.io/gh/trim21/transmission-rpc/pull/472/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Trim21) | `77.47% <ø> (ø)` | | | [3.9](https://app.codecov.io/gh/trim21/transmission-rpc/pull/472/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Trim21) | `77.47% <ø> (ø)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Trim21#carryforward-flags-in-the-pull-request-comment) to find out more.

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