diff --git a/z80.project/README.md b/z80.project/README.md
index daa5394..f8a1b77 100644
--- a/z80.project/README.md
+++ b/z80.project/README.md
@@ -1,6 +1,8 @@
 # LINKS
-##Timer 555 Calculator
+---
+## Timer 555 Calculator
 - https://www.digikey.de/de/resources/conversion-calculators/conversion-calculator-555-timer?srsltid=AfmBOooVGYjRDR9IChxvm5S2sqknCEWSG8kwr6jI-XGZyPnTDZY9G8-c
-##Board Simulation
+---
+## Board Simulation
 - https://easyeda.com
 - https://www.circuitlab.com/editor/#?id=7pq5wm&from=homepage
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