Fix typo from Wroker to Worker (Azure#494)

Author: ahmadtantowi

README.md

@@ -1,6 +1,6 @@
 # Azure Functions OpenAPI Extension #
 
-| Out-of-Proc Worker | In-Proc Wroker |
+| Out-of-Proc Worker | In-Proc Worker |
 | :----------------: | :------------: |
 | [![](https://img.shields.io/nuget/dt/Microsoft.Azure.Functions.Worker.Extensions.OpenApi.svg)](https://www.nuget.org/packages/Microsoft.Azure.Functions.Worker.Extensions.OpenApi/) [![](https://img.shields.io/nuget/v/Microsoft.Azure.Functions.Worker.Extensions.OpenApi.svg)](https://www.nuget.org/packages/Microsoft.Azure.Functions.Worker.Extensions.OpenApi/) | [![](https://img.shields.io/nuget/dt/Microsoft.Azure.WebJobs.Extensions.OpenApi.svg)](https://www.nuget.org/packages/Microsoft.Azure.WebJobs.Extensions.OpenApi/) [![](https://img.shields.io/nuget/v/Microsoft.Azure.WebJobs.Extensions.OpenApi.svg)](https://www.nuget.org/packages/Microsoft.Azure.WebJobs.Extensions.OpenApi/) |