Add a link to the speaker deck at Kubernetes Contributor Summit (#3205)

Add a link to the speaker deck at Kubernetes Contributor Summit

Author: wing328

README.md

@@ -591,7 +591,8 @@ Here are some companies/projects (alphabetical order) using OpenAPI Generator in
 - 2019-05-01 - [Design and generate a REST API from Swagger / OpenAPI in Java, Python, C# and more](https://simply-how.com/design-and-generate-api-code-from-openapi) by [Simply How](https://simply-how.com/)
 - 2019-05-17 - [Generate Spring Boot REST API using Swagger/OpenAPI](https://www.47northlabs.com/knowledge-base/generate-spring-boot-rest-api-using-swagger-openapi/) by [Antonie Zafirov](https://www.47northlabs.com/author/antonie-zafirov/)
 - 2019-05-22 - [REST APIs代码生成指南(OpenAPI Generator)](https://gum.co/openapi_generator_ebook_gb) by [William Cheng](https://twitter.com/wing328), [Xin Meng](https://github.com/xmeng1)
-- 2019-05/24 - [REST API 代碼生成指南 (OpenAPI Generator)](https://gum.co/openapi_generator_ebook_big5) by [William Cheng](https://twitter.com/wing328)
+- 2019-05-24 - [REST API 代碼生成指南 (OpenAPI Generator)](https://gum.co/openapi_generator_ebook_big5) by [William Cheng](https://twitter.com/wing328)
+- 2019-06-24 - [Kubernetes Clients and OpenAPI Generator](https://speakerdeck.com/wing328/kubernetes-clients-and-openapi-generator) by [William Cheng] at [Kubernetes Contributor Summits Shanghai 2019]
 
 ## [6 - About Us](#table-of-contents)