release v1.1.0

Adjusted features:

1. Provide two ways to take a screenshot: capture a specific area or capture the full screen.
2. Fix the issue where the play speed of the next video is incorrect after the user adjusts the video speed.

release v1.0.0

Finished features:

1. Users can extend the video size to full webpage.
2. Picture-in-picture
3. Users can use mouse pointer to capture the area and then screenshot the selected area. Press Ctrl+C to cancel.

Adjusted features:

1. Refactor the video play speed control feature.

Others

1. Update README content
2. Add licence

release v0.1.0

Finished features:

1. Initial project and add webpack、eslint.
2. User can control video speed.