Update label printing docs

- Remove references to blabel

docs/report/barcodes.md

@@ -0,0 +1,64 @@
+---
+title: Barcode Generation
+---
+
+## Barcode Generation
+
+Both [report](../report) and [label](../labels) templates can render custom barcode data to in-line images.
+
+!!! info "img"
+    Barcode data must be rendered inside an `<img>` tag.
+
+Inside the template file (whether it be for printing a label or generating a custom report), the following code will need to be included at the top of the template file:
+
+```html
+{% raw %}
+<!-- Load the barcode helper functions -->
+{% load barcode %}
+{% endraw %}
+```
+
+### 1D Barcode
+
+!!! info "python-barcode"
+    One dimensional barcodes (e.g. Code128) are generated using the [python-barcode](https://pypi.org/project/python-barcode/) library.
+
+To render a 1D barcode, use the `barcode` template tag, as shown in the example below:
+
+```html
+{% raw %}
+
+<!-- Don't forget to load the barcode helper! -->
+{% load barcode %}
+
+<img class='custom_class' src='{% barcode "12345678" %}'>
+
+{% endraw %}
+```
+
+The default barcode renderer will generate a barcode using [Code128](https://en.wikipedia.org/wiki/Code_128) rendering. However [other barcode formats](https://python-barcode.readthedocs.io/en/stable/codes.html) are also supported:
+
+```html
+{% raw %}
+
+{% load barcode %}
+
+<img class='custom_class' src='{% barcode "12345678" barcode_class="Code39" %}>
+{% endraw %}
+```
+
+### QR-Code
+
+!!! info "qrcode"
+    Two dimensional QR codes are generated using the [qrcode](https://pypi.org/project/qrcode/) library.
+
+To render a QR code, use the `qrcode` template tag:
+
+```html
+{% raw %}
+
+{% load barcode %}
+
+<img class='custom_qr_class' src='{% qrcode "Hello world!" %}'>
+{% endraw %}
+```