Fix typos

Author: BNAndras

docs/INSTALLATION.md

@@ -7,13 +7,13 @@ To build .NET projects, you can use the .NET Command Line Interface (CLI).
 This CLI is part of the .NET SDK, which you can install by following the [installation instructions](https://dotnet.microsoft.com/download/dotnet/8.0).
 Note: the C# track requires SDK version 9.0 or greater.
 
-After completing the installation, you can verify if the CLI was installed succesfully by running this command in a terminal:
+After completing the installation, you can verify if the CLI was installed successfully by running this command in a terminal:
 
 ```bash
 dotnet --version
 ```
 
-If the output is a version greater than or equal to `9.0.100`, the .NET SDK has been installed succesfully.
+If the output is a version greater than or equal to `9.0.100`, the .NET SDK has been installed successfully.
 
 ## Using an IDE