Remove "write-mode" from doc
"write-mode" param is now deleted
and mentioning it in doc was misleading
@@ -126,7 +126,7 @@ completed without error (whether or not changes were made).
## Checking style on a CI server
To keep your code base consistently formatted, it can be helpful to fail the CI build
-when a pull request contains unformatted code. Using `--write-mode=check` instructs
+when a pull request contains unformatted code. Using `--check` instructs
rustfmt to exit with an error code if the input is not formatted correctly.
It will also print any found differences.
