feat: also support examples for properties

Author: entropitor

packages/docusaurus-plugin-openapi-docs/src/openapi/createSchemaExample.ts

@@ -89,6 +89,13 @@ function sampleFromProp(
     return obj;
   }
 
+  if (prop.example !== undefined) {
+    return prop.example;
+  }
+  if (prop.examples !== undefined) {
+    return prop.examples[0];
+  }
+
   // TODO: handle discriminators
 
   if (prop.oneOf) {