fix typo in attribute (#864)

Author: sserrata

packages/docusaurus-plugin-openapi-docs/src/markdown/createStatusCodes.ts

@@ -285,7 +285,7 @@ export function createStatusCodes({ label, id, responses }: Props) {
                   responseHeaders &&
                     createDetails({
                       className: "openapi-markdown__details",
-                      "data-collaposed": true,
+                      "data-collapsed": true,
                       open: false,
                       style: { textAlign: "left", marginBottom: "1rem" },
                       children: [