diff --git a/.vs/PTConverter.Plugin/FileContentIndex/39645a67-18f9-4f87-b421-c72ae3ef953d.vsidx b/.vs/PTConverter.Plugin/FileContentIndex/39645a67-18f9-4f87-b421-c72ae3ef953d.vsidx
new file mode 100644
index 0000000..70c0788
Binary files /dev/null and b/.vs/PTConverter.Plugin/FileContentIndex/39645a67-18f9-4f87-b421-c72ae3ef953d.vsidx differ
diff --git a/.vs/PTConverter.Plugin/FileContentIndex/01e23e05-9850-49b1-ba67-18c442f537b1.vsidx b/.vs/PTConverter.Plugin/FileContentIndex/4fdae217-01cb-46cb-aecc-85db850c3188.vsidx
similarity index 80%
rename from .vs/PTConverter.Plugin/FileContentIndex/01e23e05-9850-49b1-ba67-18c442f537b1.vsidx
rename to .vs/PTConverter.Plugin/FileContentIndex/4fdae217-01cb-46cb-aecc-85db850c3188.vsidx
index e9fd617..08eca4f 100644
Binary files a/.vs/PTConverter.Plugin/FileContentIndex/01e23e05-9850-49b1-ba67-18c442f537b1.vsidx and b/.vs/PTConverter.Plugin/FileContentIndex/4fdae217-01cb-46cb-aecc-85db850c3188.vsidx differ
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..c5a08b6
--- /dev/null
+++ b/README.md
@@ -0,0 +1,28 @@
+# How it works
+
+1. Create new Class-Library for .NetFramework 4.7.2 or higher in Visual Studio.
+2. Open Nuget-Manager and install "PTConverter.Plugin"
+3. Add "PluginInfo.cs" and implement the interface "IPlugin".
+4. Create a XAML user control with the dimensions 450 x 800.
+5. Implement the "IPage" interface in your user control.
+
+   ```csharp
+   public string GetCategory() => "YourPluginPageName";
+   public UserControl GetPage() => new YourUserControl();
+   public string GetUnderCategory() => null; // null =  Single Page
+   public string GetUnderCategory() => "UnderPage"; // The main page has an underpage
+   public IPage Page => this;
+   ```
+
+6. Register your site in "PluginInfo.cs"
+
+   ```csharp
+   public IEnumerable<IPage> RegisterPages => new List<IPage>()
+   {
+       { new YourUserControl() }
+   };
+   ```
+
+7. Pack your library as DLL in the "plugins" folder of the application.
+
+8. Done.