README.md update.

Author: elarroba

README.md

@@ -4,7 +4,8 @@
 
 ## A Double Entry Accounting Engine for Django
 
-Django Ledger is a powerful financial management system built on the Django Web Framework. It offers a simplified API for handling complex accounting tasks in financially driven applications.
+Django Ledger is a powerful financial management system built on the Django Web Framework. It offers a simplified API
+for handling complex accounting tasks in financially driven applications.
 
 [FREE Get Started Guide](https://www.djangoledger.com/get-started) | [Join our Discord](https://discord.gg/c7PZcbYgrc) | [Documentation](https://django-ledger.readthedocs.io/en/latest/) | [QuickStart Notebook](https://github.com/arrobalytics/django-ledger/blob/develop/notebooks/QuickStart%20Notebook.ipynb)
 
@@ -29,13 +30,15 @@ Django Ledger is a powerful financial management system built on the Django Web
 ## Getting Involved
 
 - **Feature Requests/Bug Reports**: Open an issue in the repository
-- **For software customization, advanced features and consulting services**: 
-[Contact us](https://www.miguelsanda.com/work-with-me/) or email [email protected]
-- **Contribute**: See our [contribution guidelines](https://github.com/arrobalytics/django-ledger/blob/master/Contribute.md)
+- **For software customization, advanced features and consulting services**:
+  [Contact us](https://www.miguelsanda.com/work-with-me/) or email [email protected]
+- **Contribute**: See
+  our [contribution guidelines](https://github.com/arrobalytics/django-ledger/blob/master/Contribute.md)
 
 ## Who Should Contribute?
 
 We're looking for contributors with:
+
 - Python and Django programming skills
 - Finance and accounting expertise
 - Interest in developing a robust accounting engine API
@@ -89,6 +92,7 @@ pipenv install "django-ledger[graphql,pdf]"
 ```
 
 Alternatively, you can use:
+
 ```shell script
 pipenv install django-ledger\[graphql,pdf\]
 ```
@@ -109,33 +113,6 @@ INSTALLED_APPS = [
 ]
 ```
 
-
-* Add django_ledger settings to project settings.py file.
-
-```python
-DJANGO_LEDGER_ACCOUNT_MODEL = 'django_ledger.AccountModel'
-DJANGO_LEDGER_CHART_OF_ACCOUNTS_MODEL = 'django_ledger.ChartOfAccountModel'
-DJANGO_LEDGER_TRANSACTION_MODEL = 'django_ledger.TransactionModel'
-DJANGO_LEDGER_JOURNAL_ENTRY_MODEL = 'django_ledger.JournalEntryModel'
-DJANGO_LEDGER_LEDGER_MODEL = 'django_ledger.LedgerModel'
-DJANGO_LEDGER_ENTITY_MODEL = 'django_ledger.EntityModel'
-DJANGO_LEDGER_ENTITY_STATE_MODEL = 'django_ledger.EntityStateModel'
-DJANGO_LEDGER_ENTITY_UNIT_MODEL = 'django_ledger.EntityUnitModel'
-DJANGO_LEDGER_ESTIMATE_MODEL = 'django_ledger.EstimateModel'
-DJANGO_LEDGER_BILL_MODEL = 'django_ledger.BillModel'
-DJANGO_LEDGER_INVOICE_MODEL = 'django_ledger.InvoiceModel'
-DJANGO_LEDGER_PURCHASE_ORDER_MODEL = 'django_ledger.PurchaseOrderModel'
-DJANGO_LEDGER_CUSTOMER_MODEL = 'django_ledger.CustomerModel'
-DJANGO_LEDGER_VENDOR_MODEL = 'django_ledger.VendorModel'
-DJANGO_LEDGER_BANK_ACCOUNT_MODEL = 'django_ledger.BankAccountModel'
-DJANGO_LEDGER_CLOSING_ENTRY_MODEL = 'django_ledger.ClosingEntryModel'
-DJANGO_LEDGER_UNIT_OF_MEASURE_MODEL = 'django_ledger.UnitOfMeasureModel'
-DJANGO_LEDGER_ITEM_TRANSACTION_MODEL = 'django_ledger.ItemTransactionModel'
-DJANGO_LEDGER_ITEM_MODEL = 'django_ledger.ItemModel'
-DJANGO_LEDGER_STAGED_TRANSACTION_MODEL = 'django_ledger.StagedTransactionModel'
-DJANGO_LEDGER_IMPORT_JOB_MODEL = 'django_ledger.ImportJobModel'
-```
-
 * Perform database migrations:
 
 ```shell