docs(README): fix invalid markdown link (#3250)

README.md

@@ -90,7 +90,7 @@ Conduct](https://github.com/ipfs/community/blob/master/code-of-conduct.md).
 - [fuel-core](https://github.com/FuelLabs/fuel-core) - A Rust implementation of the Fuel protocol.
 - [HotShot](https://github.com/EspressoSystems/HotShot) - Decentralized sequencer in Rust developed by [Espresso Systems](https://www.espressosys.com/).
 - [ipfs-embed](https://github.com/ipfs-rust/ipfs-embed) - A small embeddable ipfs implementation
-used and maintained by [Actyx][https://www.actyx.com].
+used and maintained by [Actyx](https://www.actyx.com).
 - [iroh](https://github.com/n0-computer/iroh) - Next-generation implementation of IPFS for Cloud & Mobile platforms.
 - [Lighthouse](https://github.com/sigp/lighthouse) - Ethereum consensus client in Rust.
 - [Locutus](https://github.com/freenet/locutus) - Global, observable, decentralized key-value store.