update flake, changes to template

README.md

@@ -0,0 +1,18 @@
+## Invoiceplane Template for Heinrich-Malerbetrieb.de
+
+### Setup
+
+Run development server
+
+```
+nix run
+```
+
+Visit http://localhost:8080 , run the setup and after login browse to system settings. In the sub menu invoice, change default PDF template to `heinrichmalerbetrieb`.
+
+### Configuration
+
+General default settings which should be set
+
+  - User profile (company contact information), such as mail, address, phone and mail
+  - System settings in general and invoice: Upload company logo for login and invoice logo