style: pre-commit.ci fixes

Author: pre-commit-ci[bot]

README.md

@@ -1427,8 +1427,8 @@ CLI11 supports Unicode and wide strings as defined in the
 
 When using the command line on Windows with unicode arguments, your `main`
 function may already receive broken Unicode. Parsing `argv` at that point will
-not give you a correct string. To fix this, you have three options; the first
-is recommended for cross-platform support:
+not give you a correct string. To fix this, you have three options; the first is
+recommended for cross-platform support:
 
 1\. Replace `argv` with `app.ensure_utf8(argv)` before any arguments are parsed.
 `ensure_utf8` will do nothing on systems where `argv` is already in UTF-8 (Such