chore: update package-readme.md

src/process/package-readme.md

@@ -1,9 +1,29 @@
 Process is a library for interacting with external command-line interfaces. It provides a convenient model for launching
 processes, redirecting input and output streams, awaiting completion, handling cancellation, and more.
 
-## Usage
+## Features
 
-### Execute a command and capturing its output:
+- **Input and Output redirection:** flexible piping model, that allows to redirect the process's streams.
+- **Immutability:** The `Command` object is immutable, ensuring thread safely and allowing sharing of a base
+  configuration.
+
+## Getting Started
+
+### Install the NuGet package:
+
+```shell
+dotnet add package Geekeey.Request
+```
+
+You may need to add our NuGet feed to your nuget.config this can be done by running the following command:
+
+```shell
+dotnet nuget add source -n geekeey https://code.geekeey.de/api/packages/geekeey/nuget/index.json
+```
+
+### Usage
+
+#### Execute a command and capturing its output:
 
 ```csharp
 public static async Task<int> Main()
@@ -16,7 +36,7 @@ public static async Task<int> Main()
 }
 ```
 
-### Execute a command and redirect its output to another command:
+#### Execute a command and redirect its output to another command:
 
 ```csharp
 public static Task<int> Main()
@@ -27,7 +47,7 @@ public static Task<int> Main()
 }
 ```
 
-### Execute a command with cancellation support:
+#### Execute a command with cancellation support:
 
 ```csharp
 public static async Task<int> Main()