docs: update examples

- Update links to point to correct tests
- Add additional plugin/workshop examples

docs/examples.md

@@ -2,11 +2,42 @@
 
 ## HTTP APIs
 
-- [API V2 Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/consumer_test.go)
-- [API V3 Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/consumer_test.go)
+- [API V2 Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/consumer_v2_test.go)
+- [API V3 Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/consumer_v3_test.go)
+- [API V4 Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/consumer_v4_test.go)
 - [API Provider](https://github.com/pact-foundation/pact-go/tree/master/examples/provider_test.go)
 
 ## Asynchronous APIs
 
-- [Message Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/consumer_test.go)
-- [Message Provider](https://github.com/pact-foundation/pact-go/tree/master/examples/provider_test.go)
+- [V3 Message Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/consumer_v3_test.go#L92)
+- [V3 Message Provider](https://github.com/pact-foundation/pact-go/tree/master/examples/provider_test.go#L103)
+
+## Plugins
+
+### gRPC
+
+- [gRPC Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/grpc/grpc_consumer_test.go)
+- [gRPC Provider](https://github.com/pact-foundation/pact-go/tree/master/examples/grpc/grpc_provider_test.go)
+
+### Protobuf
+
+- [Protobuf Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/protobuf-message/protobuf_consumer_test.go)
+- [Protobuf Provider](https://github.com/pact-foundation/pact-go/tree/master/examples/protobuf-message/protobuf_provider_test.go)
+
+### Avro
+
+- [Avro Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/avro/avro_consumer_test.go)
+- [Avro Provider](https://github.com/pact-foundation/pact-go/tree/master/examples/avro/avro_provider_test.go)
+
+### Custom Plugin
+
+- [Custom plugin Consumer](https://github.com/pact-foundation/pact-go/tree/master/examples/plugin/consumer_plugin_test.go)
+- [Custom plugin Provider](https://github.com/pact-foundation/pact-go/tree/master/examples/plugin/provider_plugin_test.go)
+
+## Workshop
+
+- [Pact Workshop Go](https://github.com/pact-foundation/pact-workshop-go)
+
+## Community
+
+> If you have your own pact-go example repository, or blog post, please add it here!