Fix linters warnings

[uchitsa]

Linters warnings should be resolved:

• https://github.com/jcabi/jcabi-http/actions/workflows/markdown-lint.yml
• https://github.com/jcabi/jcabi-http/actions/workflows/typos.yml

[uchitsa]

https://github.com/jcabi/jcabi-http/actions/runs/15109651543

[uchitsa]

https://github.com/jcabi/jcabi-http/actions/runs/15109651542/job/42466009283