Merge pull request tier4#1327 from tier4/doc/open_scenario_support

Update OpenSCENARIOSupport.md

Author: yamacir-kit

.github/workflows/custom_spell.json

@@ -6,6 +6,7 @@
     "Canonicalized",
     "canonicalizing",
     "classname",
+    "Cmyk",
     "Dawid",
     "DBOOST",
     "DBUILD",