diff --git a/README.md b/README.md
index 7a5f190..6c249f5 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # LISP_in_templates
 
-an extremely simple pure lisp built in c++ templates
-it is bodged together and more of a proof of concept than anything
-it hasn't been properly tested
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+An extremely simple pure lisp built in c++ templates.
+It is bodged together and more of a proof of concept than anything.
+It hasn't been properly tested.
+
+The file "main.cpp" contains both the implementation and a test case (inside the main function, which contains nothing else).
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