diff --git a/README.md b/README.md
index 13e5fdc..a40ea89 100644
--- a/README.md
+++ b/README.md
@@ -5,9 +5,11 @@ no to actually solve all problems
 
 https://projecteuler.net
 
-## run soultion
+## run a soultion
  
 ```bash
 cd 001
-rustc solution.rs && solution
+rustc main.rs && ./main
 ```
+
+if you find a `README.md` inside a solution folder, then don't forget to read it.