readme: development, issues

README.md

@@ -6,3 +6,13 @@ This project is motivated in helping teachers to distribute their bridge knowled
 
 ## How do we want to do that?
 We create a tool with [manim](https://github.com/manimCommunity/manim), that can help in creating bridge visualizations.
+
+## Issues 
+  The codebase contains a lot of bugs, if you find one, please open an issue. Or if you want to make us happy, find the source of the problem and fix it.
+
+## Development
+  Every new stuff is in the `dev` branch. If you want to collaborate with us, do not frustrate yourself, send a pull request, we will check it, and if it is good enough, we will merge it.
+
+  **If you want to be a part of our team, you need to meet these criteria:**
+  - If you are Hungarian, and you can play bridge, and you know how to program, after a short meeting you are in
+  - If you are not Hungarian, after 10 pull requests (medium size) (in the future it can be increased) from you, if we merge them, after a medium-long meeting, you will get in the team