Fix spelling of 'Wizard'

Author: JimmyBowcott

concepts/classes/about.md

@@ -26,7 +26,7 @@ The definition of a new `class` can be seen in the following example.
 Notice the `;` after the definition.
 
 ```cpp
-class Wizzard {
+class Wizard {
   public:               // from here on all members are accessible publicly
     int cast_spell() {  // defines the public member function cast_spell
       return damage;
@@ -43,7 +43,7 @@ Take a look at `damage` inside the `cast_spell` function.
 You cannot read or change `private`  members outside of the class:
 
 ```cpp
-Wizzard silverhand{};
+Wizard silverhand{};
 // calling the `cast_spell` function is okay, it is public:
 silverhand.cast_spell();
 // => 5
@@ -64,12 +64,12 @@ A class can have several constructors.
 This is useful if you do not always have a need to set all variables.
 
 ```cpp
-class Wizzard {
+class Wizard {
   public:
-    Wizzard(std::string new_name) {
+    Wizard(std::string new_name) {
       name = new_name;
     }
-    Wizzard(std::string new_name, int new_damage) {
+    Wizard(std::string new_name, int new_damage) {
       name = new_name;
       damage = new_damage;
     }
@@ -81,8 +81,8 @@ class Wizzard {
     int damage{5};
 };
 
-Wizzard el{"Eleven"};       // deals  5 damage
-Wizzard vecna{"Vecna", 50}; // deals 50 damage
+Wizard el{"Eleven"};       // deals  5 damage
+Wizard vecna{"Vecna", 50}; // deals 50 damage
 ```
 
 Constructors are a big topic and have many nuances.
@@ -101,6 +101,6 @@ By default, everything in a `class` is `private`.
 Structs, on the other hand, are `public` until defined otherwise.
 Conventionally, the `struct` keyword is often used for **data-only structures**.
 The `class` keyword is preferred for objects that need to ensure certain properties.
-Such an invariant could be that the `damage` of your `Wizzard` `class` cannot turn negative.
+Such an invariant could be that the `damage` of your `Wizard` `class` cannot turn negative.
 The `damage` variable is private and any function that changes the damage would ensure the invariant is preserved.
 ~~~~

concepts/classes/introduction.md

@@ -25,7 +25,7 @@ The definition of a new `class` can be seen in the following example.
 Notice the `;` after the definition.
 
 ```cpp
-class Wizzard {
+class Wizard {
   public:               // from here on all members are accessible publicly
     int cast_spell() {  // defines the public member function cast_spell
       return damage;
@@ -42,7 +42,7 @@ Take a look at `damage` inside the `cast_spell` function.
 You cannot read or change `private`  members outside of the class:
 
 ```cpp
-Wizzard silverhand{};
+Wizard silverhand{};
 // calling the `cast_spell` function is okay, it is public:
 silverhand.cast_spell();
 // => 5
@@ -63,12 +63,12 @@ A class can have several constructors.
 This is useful if you do not always have a need to set all variables.
 
 ```cpp
-class Wizzard {
+class Wizard {
   public:
-    Wizzard(std::string new_name) {
+    Wizard(std::string new_name) {
       name = new_name;
     }
-    Wizzard(std::string new_name, int new_damage) {
+    Wizard(std::string new_name, int new_damage) {
       name = new_name;
       damage = new_damage;
     }
@@ -80,8 +80,8 @@ class Wizzard {
     int damage{5};
 };
 
-Wizzard el{"Eleven"};       // deals  5 damage
-Wizzard vecna{"Vecna", 50}; // deals 50 damage
+Wizard el{"Eleven"};       // deals  5 damage
+Wizard vecna{"Vecna", 50}; // deals 50 damage
 ```
 
 Constructors are a big topic and have many nuances.
@@ -100,6 +100,6 @@ By default, everything in a `class` is `private`.
 Structs, on the other hand, are `public` until defined otherwise.
 Conventionally, the `struct` keyword is often used for **data-only structures**.
 The `class` keyword is preferred for objects that need to ensure certain properties.
-Such an invariant could be that the `damage` of your `Wizzard` `class` cannot turn negative.
+Such an invariant could be that the `damage` of your `Wizard` `class` cannot turn negative.
 The `damage` variable is private and any function that changes the damage would ensure the invariant is preserved.
 ~~~~