fix embed code for wordpress's strict HTML

[codecov[bot]]

Codecov Report

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

Project coverage is 96.77%. Comparing base (c187689) to head (d678d81). Report is 4 commits behind head on main.

Additional details and impacted files

[](https://app.codecov.io/gh/artoonie/rcvis/pull/506?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Armin+Samii) ```diff @@ Coverage Diff @@ ## main #506 +/- ## ========================================== - Coverage 96.79% 96.77% -0.02% ========================================== Files 121 121 Lines 5799 5799 ========================================== - Hits 5613 5612 -1 - Misses 186 187 +1 ``` [see 1 file with indirect coverage changes](https://app.codecov.io/gh/artoonie/rcvis/pull/506/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Armin+Samii) ------ [Continue to review full report in Codecov by Sentry](https://app.codecov.io/gh/artoonie/rcvis/pull/506?dropdown=coverage&src=pr&el=continue&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Armin+Samii). > **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Armin+Samii) > `Δ = absolute (impact)`, `ø = not affected`, `? = missing data` > Powered by [Codecov](https://app.codecov.io/gh/artoonie/rcvis/pull/506?dropdown=coverage&src=pr&el=footer&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Armin+Samii). Last update [c187689...d678d81](https://app.codecov.io/gh/artoonie/rcvis/pull/506?dropdown=coverage&src=pr&el=lastupdated&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Armin+Samii). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=Armin+Samii).