Update README for PyPI

Author: rossjrw

README.md

@@ -1,35 +1,37 @@
 # python-scuttle
 
 ![tests](https://github.com/scuttle/python-scuttle/workflows/tests/badge.svg)
-[![Code style: black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
+[![Code style:
+black](https://img.shields.io/badge/code%20style-black-000000.svg)](https://github.com/psf/black)
 
 Python wrapper around [SCUTTLE](https://github.com/scuttle/scuttle) API.
 
 ## Installation
 
-With pip:
+To install the latest release from PyPI:
 
-```python
-pip install -e git+https://github.com/scuttle/python-scuttle.git
+```shell
+pip install python-scuttle
 ```
 
-With Pipenv:
+Or, to install the latest commit to master from source:
 
-```python
-pipenv install -e git+https://github.com/scuttle/python-scuttle.git
+```shell
+pip install -e git+https://github.com/scuttle/python-scuttle.git
 ```
 
 ## Usage
 
-Check out the [wiki](https://github.com/scuttle/python-scuttle/wiki/API-v1).
+Check out the [wiki](https://github.com/scuttle/python-scuttle/wiki/API-v1) for
+theoretical usage and concept explanation, or the tests for live usage.
 
 Current SCUTTLE API documentation can be found on [its
-wiki](http://scuttle.wikidot.com/api). Most methods are reproduced with similar
-names.
+wiki](http://scuttle.wikidot.com/api). As of writing, all methods are
+reproduced with similar names.
 
 ## Testing
 
-Install [Pipenv](https://pypi.org/project/pipenv/) and install development
+Install [Pipenv](https://pypi.org/project/pipenv/) and development
 dependencies:
 
 ```shell
@@ -39,9 +41,9 @@ pipenv install --dev
 Run tests in pipenv environment:
 
 ```shell
-pipenv run python3 -m pytest
+pipenv run pytest
 ```
 
-Tests require a SCUTTLE API key with full permissions. Tests will look for this
-key in the `SCUTTLE_API_KEY` environment variable. Tests require at least
+Tests require a SCUTTLE API key with full read permissions. Tests will look for
+this key in the `SCUTTLE_API_KEY` environment variable. Tests require at least
 Python 3.8.