Merge branch 'hsf-2021-01-notes' into 'master'

Details

See merge request !16

code/ExercisesCheatSheet.md

@@ -83,6 +83,7 @@ That second part can be skipped.
 
 Simple example of a memory leak and how valgrind helps a lot with this.
 Not so simple solution here. And the use of gdb with steping at the level of the destructor call is recommended. Give it as a hint to people.
+
 The solution is that the wrong destructor is called when calling "delete hexa" because the constructor is not virtual while it should be.
 
 ### callgrind

code/virtual_inheritance/README.md

@@ -3,7 +3,7 @@
 
 Step 1
 * look at the code
-* open `test.cpp`
+* open `trymultiherit.cpp`
 * create a `TextBox` and call `draw`
 * Fix the code to call both draws by using types