Usage

Configure sphinxmark in your conf.py file.

Add sphinxmark to the list of extensions:
```
extensions = ['sphinxmark']
```
If you are using a custom image file, specify its directory relative to the conf.py file. If no value is given, the path defaults to _static.
```
html_static_path = ['_static']
```

Enable sphinxmark and set options as required:

sphinxmark_enable = True
sphinxmark_div = 'default'
sphinxmark_image = 'text'
sphinxmark_text = 'Pre-Release'
sphinxmark_text_size = 80

If you define html_context in your conf.py, you must add the sphinxmark.css style sheet to it.

html_context = {
  'css_files': [
    '_static/bespoke.css',  # custom CSS styling
    '_static/sphinxmark.css',  # watermark styling
    ],
  }