Improve readme demo

Author: Boris

README.md

@@ -19,6 +19,7 @@ dotnet add package SimpleBlazorMultiselect
 See the project `SimpleBlazorMultiselectDemo` for more examples of how to use the component, 
 or take a look at the properties page on the [wiki](https://github.com/BorisGerretzen/SimpleBlazorMultiselect/wiki/Properties).
 You can also view a live demo [here](https://borisgerretzen.github.io/SimpleBlazorMultiselect/).
+To view the source code of the demo, take a look in the `demo` folder of this repository.
 
 Below are some short examples, they all use the following `@code` block:
 ```csharp

demo/README.md

@@ -0,0 +1,5 @@
+# Demos
+
+In this folder you can find the demo projects for the library.
+In `SimpleBlazorMultiselect.Demo.Shared` you can find the implementation of the various pages of the demo app.
+The other two projects showcase how to use the library in Blazor WebAssembly and Blazor Server applications.