Added video with boolean notation

Added demonstration directories

Добавлена отчасти реализованная булевая нотация. Добавлена проект нотации IDEF0.

Have groked Avalonia Canvas

ToDoListApp done

have learned DataTemplate.

Have learned Converters

MVVM OpenThePodBayDoors is done

Open the Pod Bay Doors, HAL

Have added BasicMVVMSample

Temperature converter

DataBinding. DataBindingSyntax.

Styling. ControlTheme.

Styling. ControlTheme.

Layout. ResponsiveLayout.

Layout. PositioningControls.

Layout. Choosing a layout panel.

Fundamentals. Code-behind.

Deleted all from ASP.NET