Fix the image

I had the wrong URL.

I also don't want it to use 100% of width, so switched to raw HTML.

Styling is janky. I can't seem to get any `style` directives within the
`img` tag to work in Github's preview. Hence the explicit spaces.
Somebody please make this better.

pages/bret-victor.md

@@ -10,5 +10,6 @@ The point of listing those here is not just to mirror what's on Bret's site, but
 # Threads from our archives with interesting comments or call-outs
 
 [2020-12-16](https://akkartik.name/archives/foc/thinking-together/1607887127.284300.html#1608190990.334700): Trying to implement [Bret's binary search example from "Inventing On Principle"](https://vimeo.com/36579366) in a live-updating postfix environment.
-    ![screenshot of Bret Victor's binary search example](assets/20201216-bv-binarysearch.png)
+<p>&nbsp; &nbsp; <img src='/assets/20201216-bv-binarysearch.png' width='500px'/>
+
 [2024-09-04](https://akkartik.name/archives/foc/linking-together/1725460553.288869.html): Dynamicland 2024