diff --git a/README.md b/README.md
index bf3c26c..3f74e3e 100644
--- a/README.md
+++ b/README.md
@@ -16,4 +16,4 @@ Detailed information on how to use [egui](https://github.com/emilk/egui) rust li
 
 ## Math
 
-A simple explanation of [[Home]] [Collisions2D.pdf] 2D vector math silently working behind the coalitions simulation.
+A simple explanation of [2D vector math](https://gitea.djmil.dev/djmil/egui-circles/wiki/raw/Collisions2D.pdf), silently working behind the scene of the collisions simulation.