fix(docs): fix typo "yavascript"

[LeoniePhiline]

I've been looking for indicators that the misspelling of javascript.js as yavascript.js is intentional, but found none.

This PR fixes the typo, replacing yavascript with javascript.

[Keats]

This is not a typo, it's a reference to https://www.destroyallsoftware.com/talks/the-birth-and-death-of-javascript but maybe too obscure now 🤔

[LeoniePhiline]

Ah yes, I remember seeing that fantastic presentation, long ago.

I do agree that the reference is obscure. What do you think about keeping the joke, but referencing the video directly or in a foot note?

[Keats]

No it's fine, can't expect everyone to know some obscure reference and have to watch a talk to understand it

[monogatron]

I watched this talk only because of this PR. Thanks for this, I felt quiet entertained. :)

[Keavon]

For the record, I got the reference.