docs: fix example links in getting started with OpenTelemetry (#6880)

### Describe Your Changes

Fix broken link on:
https://docs.victoriametrics.com/guides/getting-started-with-opentelemetry/index.html#building-the-go-application-instrumented-with-metrics
- https://docs.victoriametrics.com/guides/app.go-collector.example
- https://docs.victoriametrics.com/guides/app.go.example

The valid links **could be**:
-
https://docs.victoriametrics.com/guides/getting-started-with-opentelemetry/app.go-collector.example
-
https://docs.victoriametrics.com/guides/getting-started-with-opentelemetry/app.go.example

Also went throught `/guides` folder and did not found doc with same
issue. Please advice if you know more.

### Checklist

The following checks are **mandatory**:

- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).

(cherry picked from commit 9c3b5116dd)
This commit is contained in:
Zhu Jiekun 2024-08-27 16:36:52 +08:00 committed by hagen1778
parent 259f49089a
commit 397318f8f3
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@ -100,7 +100,7 @@ Metrics could be sent to VictoriaMetrics via OpenTelemetry instrumentation libra
In our example, we'll create a WEB server in [Golang](https://go.dev/) and instrument it with metrics.
### Building the Go application instrumented with metrics
Copy the go file from [here](/guides/app.go-collector.example). This will give you a basic implementation of a dice roll WEB server with the urls for opentelemetry-collector pointing to localhost:4318.
Copy the go file from [here](app.go-collector.example). This will give you a basic implementation of a dice roll WEB server with the urls for opentelemetry-collector pointing to localhost:4318.
In the same directory run the following command to create the `go.mod` file:
```sh
go mod init vm/otel
@ -167,7 +167,7 @@ In our example, we'll create a WEB server in [Golang](https://go.dev/) and instr
### Building the Go application instrumented with metrics
See the full source code of the example [here](/guides/app.go.example).
See the full source code of the example [here](app.go.example).
The list of OpenTelemetry dependencies for `go.mod` is the following: