diff --git a/readme.md b/readme.md
index c497345..db5153a 100644
--- a/readme.md
+++ b/readme.md
@@ -82,14 +82,16 @@ Reference voltage (green):
 3.3V \frac{22k\Omega}{22k\Omega + 10k\Omega} = 2.2V
 ```
 
+
 Trigger voltage (purple):
 
 ```math
 3.3V \frac{330k\Omega}{330k\Omega + 82k\Omega} = 2.64V
 ```
 
+
 RC constant:
 
 ```math
-\tau = 82k\Omega 100nF = 8.2ms
+\tau = 82k\Omega \{} 100nF = 8.2ms
 ```