Corrections after presentation

HOME_EXAM.md

@@ -59,3 +59,13 @@ Comment on the alignment of the concrete course goals (taken from the course des
     - I did very little work in this area.
 
 Comment on additional things that you have experienced and learned throughout the course.
+
+## Corrections
+
+* Add README.md to the compiler with instructions about how to run it.
+
+* Add expected type info in type-checking errors.
+
+* Do not allow mutable reference of non-mutable variable (at the reference operator, it is already handled at assignment).
+
+* Only disallow reference to the same value in multiple arguments if one argument is mutable.
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