Add screenshots to examples to make usage clear without cloning/looking at code

# Feature request
It'd be nice to have screenshots in the README for every examples, so it makes their usages clear.

## Why it is needed
Clarity about the library and custom components, saces time while integrating with a project.

## Possible implementation
Just add pictures in the README.

### Code sample

Review the README and the repository's examples to identify every example that needs a screenshot and determine how the examples are currently presented. Add screenshots to the README so each example's usage is understandable without cloning the repository or reading its code.

Written by the indexing model from the issue text.