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+Hello, contributor!
+
+You're welcome to be a part of open-source world named **Effil**.
+
+Here is short list of wishes to contributor:
+1. Follow code style. There is no formal document, so check out our sources.
+2. Specify corresponding issue to pull request. If there is no one, please create it before you start write a code!
+3. Feel free to communicate with maintainers and other contributors if you're not sure that you know how to solve problem. Btw communicate with us even if you know!
+
+`Join us now and share the software. You'll be free, hackers, you'll be free.`
+Ⓒ Richard M. Stallman