From 5479ab8478ecd1b5750c8e82aece198652bf39d3 Mon Sep 17 00:00:00 2001
From: Zhen Li <45376537+li3zhen1@users.noreply.github.com>
Date: Fri, 20 Oct 2023 14:59:52 -0400
Subject: [PATCH] Update README.md

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 7f2eb02..f51429c 100644
--- a/README.md
+++ b/README.md
@@ -76,7 +76,7 @@ let links: [(Node.ID, Node.ID)] = ...
 let sim = Simulation2D(nodeIds: nodeIds, alphaDecay: 0.01)
 sim.createManyBodyForce(strength: -12)
 sim.createLinkForce(links)
-sim.createCenterForce(center: Vector2d(0, 0), strength: 0.4)
+sim.createCenterForce(center: [0, 0], strength: 0.4)
 sim.createCollideForce(radius: .constant(3))
 
 /// Force is ready to start! run `tick` to iterate the simulation.