diff --git a/pg_cs/democontent/democontent.md b/pg_cs/democontent/democontent.md
index d9bc3cff590d703ad8dd1e6bc4e85fcbc5403b15..7370a053ce33f6f18f48aafbde0fabe8734ce926 100644
--- a/pg_cs/democontent/democontent.md
+++ b/pg_cs/democontent/democontent.md
@@ -12,7 +12,7 @@ A smooth function $f$ of one variable fulfills that $\,f(2)=1\,$ and $\,f'(2)=1\
 In this exercise we are testing in particular the following differentiation rules:
 
 - The product rule used when differentiating the product of two functions.
-- The chain rule used when differentiating a composite function ("a function within a function").
+- The chain rule used when differentiating a composite function ("a function within a function").  
 
 \begin{gather*}
 a_1=b_1+c_1\\