use 4318 for http

Author: cijothomas

opentelemetry-otlp/examples/basic-otlp-http/README.md

@@ -36,14 +36,14 @@ On Unix based systems use:
 
 ```shell
 # From the current directory, run `opentelemetry-collector`
-docker run --rm -it -p 4317:4317 -v $(pwd):/cfg otel/opentelemetry-collector:latest --config=/cfg/otel-collector-config.yaml
+docker run --rm -it -p 4318:4318 -v $(pwd):/cfg otel/opentelemetry-collector:latest --config=/cfg/otel-collector-config.yaml
 ```
 
 On Windows use:
 
 ```shell
 # From the current directory, run `opentelemetry-collector`
-docker run --rm -it -p 4317:4317 -v "%cd%":/cfg otel/opentelemetry-collector:latest --config=/cfg/otel-collector-config.yaml
+docker run --rm -it -p 4318:4318 -v "%cd%":/cfg otel/opentelemetry-collector:latest --config=/cfg/otel-collector-config.yaml
 ```
 
 Run the app which exports logs, metrics and traces via OTLP to the collector