add command to start the api and a little bit of docs

Pipfile

@@ -56,3 +56,4 @@ collectstatic = "python manage.py collectstatic -c --noinput"
 pytest = "pytest"
 coveralls = "coveralls"
 migratedb = "python manage.py migrate --noinput"
+start = "bash -c \"(cd api_endpoints/v1_postcode_lookup/ && uvicorn app:app --reload)\""

README.md

@@ -11,11 +11,18 @@
 This section assumes a working python 3.8 environment with Pipenv installed.
 
 * `cp ec_api/settings/local.py.example ec_api/settings/local.py`
-* Install Python dependencies: `pipenv install --dev`
+* Install Python dependencies:
+    * `pipenv install --dev`
+    * `pip install -r api_endpoints/v1_postcode_lookup/requirements.txt`
 * Run the test suite: `pytest`
 * Run lint checks: `ruff .`
 * Auto-format: `ruff format .`
 
+## Run application
+
+- Frontend: `./mange.py runserver`
+- API: `pipenv run start`
+
 ## Pre-commit
 
 Using a pre-commit hook is suggested when working on this project to catch