docs: add curl commands

[JStickler]

What this PR does / why we need it:

Adds curl commands to procedure.

Which issue(s) this PR fixes:
Fixes #7478

Special notes for your reviewer:
@Jayclifford345 I just want to make sure that adding tabbed content will also work in the Killercoda tutorial.

[github-actions]

💻 Deploy preview deleted.

[Jayclifford345]

Hi @JStickler,
At the moment we don't support it but I can add a ticket. We can easily get around it though by adding the following:

   <!-- INTERACTIVE ignore START -->
   {{< tabs >}}
   {{< tab-content name="wget" >}}
   ```bash
   wget https://raw.githubusercontent.com/grafana/loki/main/examples/getting-started/loki-config.yaml -O loki-config.yaml
   wget https://raw.githubusercontent.com/grafana/loki/main/examples/getting-started/alloy-local-config.yaml -O alloy-local-config.yaml
   wget https://raw.githubusercontent.com/grafana/loki/main/examples/getting-started/docker-compose.yaml -O docker-compose.yaml
   ```
   {{< /tab-content >}}
   {{< tab-content name="curl" >}}
   ```bash
   curl https://raw.githubusercontent.com/grafana/loki/main/examples/getting-started/loki-config.yaml --output loki-config.yaml
   curl https://raw.githubusercontent.com/grafana/loki/main/examples/getting-started/alloy-local-config.yaml --output alloy-local-config.yaml
   curl https://raw.githubusercontent.com/grafana/loki/main/examples/getting-started/docker-compose.yaml --output docker-compose.yaml
   ```
   {{< /tab-content >}}
   {{< /tabs >}}
 <!-- INTERACTIVE ignore END -->

{{< docs/ignore >}}
   ```bash
   wget https://raw.githubusercontent.com/grafana/loki/main/examples/getting-started/loki-config.yaml -O loki-config.yaml
   wget https://raw.githubusercontent.com/grafana/loki/main/examples/getting-started/alloy-local-config.yaml -O alloy-local-config.yaml
   wget https://raw.githubusercontent.com/grafana/loki/main/examples/getting-started/docker-compose.yaml -O docker-compose.yaml
   ```
{{< /docs/ignore >}}
 

Not the prettiest but this will force the transformer to ignore the tabbing for now but still leave a workable example for Killercoda to use. Then once we add the feature we can remove the meta-ignore jargon. Also tagging @jdbaldry so he is in the loop

[Jayclifford345]

See above comment :)

[Jayclifford345]

LGTM :)