docs: Add Contributing file. (#124)

Suggested by Github on the Community standards tab.

Author: bvanelli

CONTRIBUTING.md

@@ -0,0 +1,29 @@
+# Contributing
+
+The goal is to have more features implemented and tested on the Actual API. If you have ideas, comments, bug fixes or
+requests feel free to open an issue or submit a pull request.
+
+To install requirements, install both requirements files:
+
+```bash
+# optionally setup a venv (recommended)
+python3 -m venv venv && source venv/bin/activate
+# install requirements
+pip install -r requirements.txt
+pip install -r requirements-dev.txt
+```
+
+We use [`pre-commit`](https://pre-commit.com/) to ensure consistent formatting across different developers. To develop
+locally, make sure you install all development requirements, then install `pre-commit` hooks. This would make sure the
+formatting runs on every commit.
+
+```
+pre-commit install
+```
+
+To run tests, make sure you have docker installed ([how to install docker](https://docs.docker.com/engine/install/)).
+Run the tests on your machine:
+
+```bash
+pytest
+```

README.md

@@ -117,33 +117,3 @@ This means that, when using this library to operate changes on the database, you
 - do a sync request is made using the `actual.commit()` method. This only handles pending operations that haven't yet
   been committed, generates a change list with them and posts them on the sync endpoint.
 - do a full re-upload of the database is done.
-
-# Contributing
-
-The goal is to have more features implemented and tested on the Actual API. If you have ideas, comments, bug fixes or
-requests feel free to open an issue or submit a pull request.
-
-To install requirements, install both requirements files:
-
-```bash
-# optionally setup a venv (recommended)
-python3 -m venv venv && source venv/bin/activate
-# install requirements
-pip install -r requirements.txt
-pip install -r requirements-dev.txt
-```
-
-We use [`pre-commit`](https://pre-commit.com/) to ensure consistent formatting across different developers. To develop
-locally, make sure you install all development requirements, then install `pre-commit` hooks. This would make sure the
-formatting runs on every commit.
-
-```
-pre-commit install
-```
-
-To run tests, make sure you have docker installed ([how to install docker](https://docs.docker.com/engine/install/)).
-Run the tests on your machine:
-
-```bash
-pytest
-```