doc: remove deprecated sample from README

FIX #170

Author: davidB

axum-tracing-opentelemetry/README.md

@@ -16,7 +16,7 @@ For examples, you can look at the [examples](https://github.com/davidB/tracing-o
 
 ```txt
 //...
-use axum_tracing_opentelemetry::opentelemetry_tracing_layer;
+use axum_tracing_opentelemetry::middleware::{OtelAxumLayer, OtelInResponseLayer};
 
 #[tokio::main]
 async fn main() -> Result<(), axum::BoxError> {

examples/axum-otlp/README.md

@@ -54,7 +54,7 @@ export OTEL_TRACES_SAMPLER="always_on"
 ...
 ```
 
-Into an other terminal, call the `/` (endpoint with `opentelemetry_tracing_layer` and `response_with_trace_layer`)
+Into an other terminal, call the `/` (endpoint with `OtelAxumLayer` and `OtelInResponseLayer`)
 
 ```sh
 ❯ curl -i http://127.0.0.1:3003/

init-tracing-opentelemetry/README.md

@@ -6,9 +6,6 @@
 A set of helpers to initialize (and more) tracing + opentelemetry (compose your own or use opinionated preset)
 
 ```txt
-//...
-use axum_tracing_opentelemetry::opentelemetry_tracing_layer;
-
 #[tokio::main]
 async fn main() -> Result<(), axum::BoxError> {
     // very opinionated init of tracing, look as is source to compose your own