diff --git a/ReadMe.txt b/ReadMe.txt
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--- a/ReadMe.txt
+++ b/ReadMe.txt
@@ -33,7 +33,7 @@ www.iri.upc.edu/people/dmartinez/rexd_docs/index.html
 
 
 ======================
-=== Introduction   ===
+===  Introduction  ===
 ======================
 REX-D is a relational reinforcement learning with demonstrations algorithm.