Update attribution visibility requirement in README

Author: levno-710

readme.md

@@ -61,7 +61,7 @@ You are free to use, modify, and distribute this software, including for commerc
 ```
 Based on Prometheus by Elias Oelschner, https://github.com/prometheus-lua/Prometheus
 ```
- - The attribution must be visible in the product’s UI, documentation, or public website.
+ - The attribution must be visible in the product’s UI, documentation, and public website.
  - The obfuscated output files generated by Prometheus do not need to include any license or copyright notice.
  - Derivative works and public forks must also include a statement in their README noting that they are based on Prometheus.