added HRT as gold sponsor (#1552)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: deutranium

src/content/sponsors/hrt/hrt.png

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+---
+name: Hudson River Trading
+url: https://www.hudsonrivertrading.com
+location: "USA"
+industry: "Algorithmic Trading"
+description:
+  "Hudson River Trading (HRT) is a global algorithmic trading firm built by
+  mathematicians, computer scientists, statisticians, physicists, and engineers.
+  Founded in 2002 by Harvard and MIT graduates, they develop automated trading
+  algorithms using advanced mathematical techniques, trading on nearly all of
+  the world's electronic markets across multiple asset classes. With over 800
+  people and one of the most sophisticated computing environments in the
+  industry, HRT is a leading advocate for fair and transparent markets - a
+  philosophy that drives every aspect of their research."
+socials:
+  linkedin: "https://www.linkedin.com/company/hudson-river-trading"
+  github:
+  discord:
+  youtube: "https://www.youtube.com/@Hudson-River-Trading"
+  instagram: "https://www.instagram.com/hudsonrivertrading/"
+  facebook: "https://www.facebook.com/hudsonrivertrading"
+  twitter: "https://x.com/weareHRT"
+tier: Gold
+---