Thank you for your contribution @ideba.
After reviewing your tutorial we suggest the following points listed below:

- Your tutorial is quite short for a good tutorial. We recommend you aim for capturing at least 2-3 concepts.

- We suggest you put comments in your code sections. The comments in the code are very important because it helps a lot less experienced readers to understand your code better.

- Images that aren't yours is necessary to put the source.

- It's interesting to have a short video with the presentation of the features that developed.

Thank you for your work in developing this tutorial.
Looking forward to your upcoming tutorials.

Your contribution has been evaluated according to [Utopian policies and guidelines](https://join.utopian.io/guidelines), as well as a predefined set of questions pertaining to the category.

To view those questions and the relevant answers related to your post, [click here](https://review.utopian.io/result/8/3-1-2-2-3-4-2-3-).

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