docs: remove README provenance line

Author: vinsidious

README.md

@@ -9,7 +9,6 @@ An opinionated SQL formatter that implements [Simon Holywell's SQL Style Guide](
 
 **[Try it live in your browser at holywell.sh](https://holywell.sh)**
 
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 ## Why?
 
 The [SQL Style Guide](https://www.sqlstyle.guide/) is an excellent resource for writing readable, maintainable SQL, but no formatter existed to enforce it automatically. holywell was created to fill that gap -- a zero-dependency TypeScript formatter that faithfully implements the guide's river alignment and formatting conventions with minimal configuration.