Fix broken link in README.md (#2989)

Broken when we converted some more RST docs to MyST

diff --git a/README.md b/README.md
index f2d06bedad23ecf8de358fd0c67009463a82ac4f..5b71ba72143acdbaa15ba95db2e0e5dbb3c1f430 100644 (file)
--- a/README.md
+++ b/README.md
@@ -69,7 +69,7 @@ tests, and our own auto formatting and parallel Continuous Integration runner. N
 we have become stable, you should not expect large formatting to changes in the future.
 Stylistic changes will mostly be responses to bug reports and support for new Python
 syntax. For more information please refer to the
 we have become stable, you should not expect large formatting to changes in the future.
 Stylistic changes will mostly be responses to bug reports and support for new Python
 syntax. For more information please refer to the

-[The Black Code Style](docs/the_black_code_style/index.rst).
+[The Black Code Style](https://black.readthedocs.io/en/stable/the_black_code_style/index.html).

 
 Also, as a safety measure which slows down processing, _Black_ will check that the
 reformatted code still produces a valid AST that is effectively equivalent to the
 
 Also, as a safety measure which slows down processing, _Black_ will check that the
 reformatted code still produces a valid AST that is effectively equivalent to the