Added contribution guides. (#167)

Author: s3rius

docs/contrib.md

@@ -0,0 +1,80 @@
+---
+order: 5
+---
+
+# Contribution guide
+
+We love contributions. This guide is for all folks who want to make taskiq
+better together.
+
+We have several rules for contributors:
+* Please do not add malware.
+* Please make sure that your request solves problem.
+
+If you struggle with something or feel frustrating, you either create an issue, create a discussion on page or publish draft PR and ask your question in description.
+
+We have lots of tests in CI. But since runs from first-time contributors should be approved you better test locally, it just takes less time.
+
+We love contributions. This guide is for all folks who want to make taskiq better together.
+We have several rules for contributors:
+* Please do not add malware.
+* Please make sure that your request solves the problem.
+
+If you struggle with something or feel frustrated, you either create an issue, create a [discussions](https://github.com/orgs/taskiq-python/discussions).
+page or publish a draft PR and ask your question in the description.
+
+We have lots of tests in CI. But since CI runs from first-time contributors should be approved, you better test locally. It just takes less time to prepare PR for merging.
+
+## Setting up environment
+
+We use poetry for managing dependencies. To install it, please follow the official guide in [documentation](https://python-poetry.org/docs/).
+
+After you have cloned the taskiq repo, install dependencies using this command:
+
+```bash
+poetry install
+```
+
+It will install all required dependencies.
+If you want to run pytest against different python environments, please install `pyenv` using instructions from its [readme](https://github.com/pyenv/pyenv).
+
+After pyenv is ready, you can install all python versions using this command:
+
+```bash
+pyenv install
+```
+
+## Linting
+
+We have `pre-commit` configured with all our settings. We highly recommend you to install it as a git hook using `pre-commit install` command.
+
+But even without installation, you can run all lints manually:
+
+```bash
+pre-commit run -a
+```
+
+
+## Testing
+
+You can run `pytest` without any parameters and it will do the thing.
+
+```bash
+pytest
+```
+
+If you want to speedup testings, you can run it with `-n` option from [pytest-xdist](https://pypi.org/project/pytest-xdist/) to run tests in parallel.
+
+```bash
+pytest -n 2
+```
+
+Also we use `tox` to test against different environments. You can publish a PR to run pytest with different
+python versions, but if you want to do it locally, just run `tox` command.
+
+
+```bash
+tox
+```
+
+Tox assumes that you've installed python versions using pyenv with command above.

tox.ini

@@ -12,4 +12,4 @@ allowlist_externals = poetry
 commands_pre =
     poetry install
 commands =
-    poetry run pytest -vv tests/
+    poetry run pytest -vv