Fix typo in READMe

Author: xxEoD2242

README.md

@@ -7,7 +7,7 @@
 
 ## Looking for more performance?
 The company managing this repo created the SWARM Developer System to help build, simulate and deploy single and
-multi-agent autonomous systems. Check it out here: [SWARM Developer System](https://www.swarsim.io/overview/developer)
+multi-agent autonomous systems. Check it out here: [SWARM Developer System](https://www.swarmsim.io/overview/developer)
 
 ## IMPORTANT ANNOUNCEMENT
 Moving forward, we are now using Unreal Engine 5 version 5.03 or greater! If you