Make the titles consistent

exercises/13/create_function/exercise.md

@@ -1,4 +1,4 @@
-# 131. Functions and Parameter Passing
+# Exercise: Create an isWall function
 
 In this exercise we will write some helper functions for the game board.
 

exercises/15/build_files/exercise.md

@@ -1,4 +1,4 @@
-# Compilation, Linking and Assets
+# Exercise: Add files to the build
 
 In this exercise we will add a couple of files to the project.
 

exercises/15/unit_test/exercise.md

@@ -1,4 +1,4 @@
-# 150. Unit tests
+# Exercise: Create and run a unit test
 
 ## Board Unit Tests
 

exercises/16/unique_ptr_pacman/exercise.md

@@ -1,4 +1,4 @@
-# Memory and RAII
+# Exercise: std::unique_ptr<PacMan>
 
 (corentin: maybe something about } that destroys things)
 We are going to play with using std::unique_ptr as we discussed in the slides. Since we will be reverting these changes

exercises/17/create_class/exercise.md

@@ -1,4 +1,4 @@
-
+# Exercise: Simple class
 
 4. Create an empty class named `Clyde` within the `.hpp` file. Look at other ghost `.hpp` files and see how they define
    the class. It does not need to inherit from the `Ghost` base class and it does not need any functions. But if you

exercises/17/refactor_out_ghost_state/exercise.md

@@ -1,4 +1,4 @@
-# Classes and Structs
+# Exercise: Refactor out GhostState from GameState
 
 In this exercise we will create a class that abstracts away common functionality.
 

exercises/21/is_intersection/exercise.md

@@ -1,4 +1,4 @@
-# std::array and ranged for
+# Exercise: Create isIntersection function
 
 waage: Maybe the "isIntersection" for the AI. Create an array of GridPosition and array of bool and loop through to
 check "isWalkableForPacMan" and then return the different kinds of intersections (top/right, right/bottom, bottom/left,

exercises/23/algorithm_pellets/exercise.md

@@ -1,4 +1,4 @@
-# Iterators and algorithms
+# Exercise: Use algorithms
 
 Use algorithms in Pellet and SuperPellet
 

exercises/24/lambda-fy/exercise.md

@@ -1,3 +1,3 @@
-# Lambdas
+# Exercise: Lambdas
 
 Find a small function and turn it into a lambda.

exercises/advanced/blue_pellet/exercise.md

@@ -1,2 +1,3 @@
-# Blue Pellet?
+# Exercise: Blue Pellet
+
 A pellet that makes the ghosts stop

exercises/advanced/high_score/exercise.md

@@ -1 +1,3 @@
+# Exercise: Read and Write High Score to a file
+
 (std::filesystem)

exercises/advanced/hitbox_collision/exercise.md

@@ -1,3 +1,3 @@
-# Hitbox collision
+# Exercise: Hitbox collision
 
 AABB