add lint and test to Pipenv scripts, update docs

Author: Kilo59

Pipfile

@@ -30,3 +30,5 @@ dev = "uvicorn app.main:APP --reload"
 start = "uvicorn app.main:APP"
 fmt = "invoke fmt"
 sort = "invoke sort"
+lint = "invoke lint"
+test = "invoke test"

README.md

@@ -414,32 +414,26 @@ And don't despair if don't get the python setup working on the first try. No one
 * Visit your app at [http://localhost:5000](http://localhost:5000).
 
 ### Running Tests
+> [pytest](https://docs.pytest.org/en/latest/)
 
 ```bash
-pipenv sync --dev
-pipenv shell
-make test
+pipenv run test
 ```
 
+
 ### Linting
+> [pylint](https://www.pylint.org/)
 
 ```bash
-pipenv sync --dev
-pipenv shell
-make lint
+pipenv run lint
 ```
 
 ### Formatting
+> [black](https://black.readthedocs.io/en/stable/)
 
 ```bash
 pipenv run fmt
 ```
-or
-```bash
-pipenv shell
-make fmt
-```
-
 
 ### Building