Add NFAA tag

Hi, please add the "Not-For-All-Audiences" tag since this content might not be suitable for all audiences. Here's our content policy for reference: https://huggingface.co/content-guidelines

Thank you!

README.md

@@ -4,6 +4,7 @@ tags:
 - lora
 - diffusers
 - template:diffusion-lora
+- not-for-all-audiences
 widget:
 - text: >-
     Two naked and lustful girls posing explicitly together for a photograph. The