fix: typo in inheritance section

C++ Syntax.md

@@ -176,7 +176,7 @@ Another important consideration: If you have getters and setters for all of your
 ### 1.2 Inheritance
 A class can extend another class, meaning that the new class inherits all of the data from the other class, and can also override its methods, add new members, etc. Inheritance is the key feature required for [polymorphism](#13-class-polymorphism).
 
-It is important to note that this feature is often overused by beginners and sometimes unnecessary hierarchies are created, adding to the overally complexity. There are some good alternatives such as [composition](https://en.wikipedia.org/wiki/Composition_over_inheritance) and [aggregation](https://stackoverflow.com/a/269535), although, of course, sometimes inheritance is exactly what is needed.
+It is important to note that this feature is often overused by beginners and sometimes unnecessary hierarchies are created, adding to the overall complexity. There are some good alternatives such as [composition](https://en.wikipedia.org/wiki/Composition_over_inheritance) and [aggregation](https://stackoverflow.com/a/269535), although, of course, sometimes inheritance is exactly what is needed.
 
 **Example:** the class `Rectangle` can inherit from the class `Polygon`. You would then say that a `Rectangle` extends from a `Polygon`, or that class `Rectangle` is a sub-class of `Polygon`. In plain English, this means that a `Rectangle` is a more specialized version of a `Polygon`. Thus, all rectangles are polygons, but not all polygons are rectangles.