update link to invoiceninja for self hosted version

README.md

@@ -640,7 +640,7 @@ See also <https://en.wikipedia.org/wiki/List_of_streaming_media_systems>, <https
   * [GRR](http://grr.devome.com/?lang=en) - Assets management and booking for small/medium companies. ([demo](http://grr.devome.com/demo/week_all.php?year=2015&month=07&day=28&area=94), _administrateur/azerty_) `GPLv2` `PHP`
   * [Hospital Run](http://hospitalrun.io/) - Hospital Run is offline enabled hospital management software. ([Source Code](https://github.com/HospitalRun/hospitalrun-server), [Demo](http://hospitalrun.io/demo/)) `GPLv3` `Nodejs/Ember`
   * [Inventaire](https://inventaire.io/welcome) - Collaborative resources mapper project, while yet only focused on exploring books mapping with wikidata and ISBNs. ([Source Code](https://github.com/inventaire/inventaire)) `AGPLv3` `Nodejs`
-  * [Invoice Ninja](https://www.invoiceninja.com/) - A powerful tool to invoice clients online. ([Demo](https://app.invoiceninja.com/invoices/create), [Source Code](https://github.com/invoiceninja/invoiceninja)) `AAL` `PHP`
+  * [Invoice Ninja](https://www.invoiceninja.org/) - A powerful tool to invoice clients online. ([Demo](https://app.invoiceninja.com/invoices/create), [Source Code](https://github.com/invoiceninja/invoiceninja)) `AAL` `PHP`
   * [InvoicePlane](https://invoiceplane.com/) - Manage quotes, invoices, payments and customers for your small business. ([Demo](https://demo.invoiceplane.com), [Source Code](https://github.com/InvoicePlane/InvoicePlane)) `MIT`
   * [IHateMoney](http://ihatemoney.org/) - Manage your shared expenses, easily. ([Source Code](https://github.com/spiral-project/ihatemoney)) `BSD` `Python`
   * [Tryton](http://www.tryton.org/) - Core base of a complete business solution (ERP). ([Demo](http://demo.tryton.org) admin/admin, [Source Code](https://hg.tryton.org)) `GPLv3` `Python`