diff --git a/tech/machine_learning.wiki b/tech/machine_learning.wiki
index 6ba67b9..9324ca6 100644
--- a/tech/machine_learning.wiki
+++ b/tech/machine_learning.wiki
@@ -44,4 +44,4 @@ Classification is used to distinguish between two or more choices.
 For regression models the sample is often a Tuple of several factors about the
 sample, and often those fields can be categorical. Each element of a tuple can
 be either categorical (discrete) or numeric (continuous). These elements are
-often called features. 
+often called features.