README: Remove trailing whitespace.
diff --git a/README.md b/README.md
index ce6502d..fbe7655 100644
--- a/README.md
+++ b/README.md
@@ -125,7 +125,7 @@
 ## Testing ##
 
 This package includes a collection of automated tests.
-Running them is not part of building nor installation but optional. 
+Running them is not part of building nor installation but optional.
 
 ### Unix-like System or MinGW ###