update readme

CONTRIBUTING.md

@@ -0,0 +1,21 @@
+# Contributing
+
+All contributions are welcomed. If it's your first time contributing to open source please don't hesitate and just open a Pull Request. Your suggestion/fix isn't stupid, I'll make sure I explain what's wrong with your PR if it wasn't accepted.
+
+## Here are some points to consider:
+
+- Your PR must be making only a single change, if you want to suggest multiple features or fix multiple issues please open separate PRs.
+- If you have an idea that will require a lot of work, make sure you suggest it in a new [issue](https://github.com/PythonBenin/kkiapay-python/issues) first to make sure it's admired before investing time into it.
+- If you want to contribute and not sure where to start, check the [road map](https://github.com/PythonBenin/kkiapay-python#road-map).
+- Pull Requests that don't have a clear explanation of what it does will be closed. Sorry :)
+- Keep your code clean. Clean means you're proud of how it turned out.
+
+## How to contribute:
+
+Clone `kkiapay-python` on your machine. Install all development dependencies using:
+
+```bash
+pipenv install --dev
+```
+If you haven't used `pipenv` before but are comfortable with virtualenvs, just run `pip install pipenv` in the virtualenv you're already using and invoke the command above from the cloned `kkiapay-python` repo. It will do the correct thing.
+

readme.md

@@ -56,7 +56,10 @@ print(transaction.amount)
 
 Here's the plan for what's coming:
 
-- [x] Python 2
+- [x] Sandbox and Live environments
+- [x] Verify Transaction
+- [ ] Refund Transaction
+- [ ] Schedule Payout
 - [ ] Add tests.
 
 ## Contributing