ruff, ruff-{check,format}: add page (#12377)

* ruff-format: add page

* ruff-check: add page

* ruff: add page

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Co-authored-by: Juri Dispan <juri.dispan@posteo.net>

pages/common/ruff-format.md

@@ -0,0 +1,17 @@
+# ruff format
+
+> An extremely fast Python code formatter.
+> If no files or directories are specified, the current working directory is used by default.
+> More information: <https://docs.astral.sh/ruff/formatter>.
+
+- Format given files or directories in-place:
+
+`ruff format {{path/to/file_or_directory1 path/to/file_or_directory2 ...}}`
+
+- Print which files would have been modified and return a non-zero exit code if there are files to reformat, and zero otherwise:
+
+`ruff format --check`
+
+- Print what changes would be made without modifying the files:
+
+`ruff format --diff`