fix: update Docker image tag and correct port exposure details in standalone documentation

Author: IEvangelist

src/frontend/src/content/docs/dashboard/security-considerations.mdx

@@ -85,7 +85,7 @@ builder.Services.Configure<OtlpExporterOptions>(
     o => o.Headers = $"x-otlp-api-key={MY_APIKEY}");
 ```
 
-Other languages have different OpenTelmetry APIs. Passing the [`OTEL_EXPORTER_OTLP_HEADERS` environment variable](https://opentelemetry.io/docs/specs/otel/protocol/exporter/) to apps is a universal way to configure the header.
+Other languages have different OpenTelemetry APIs. Passing the [`OTEL_EXPORTER_OTLP_HEADERS` environment variable](https://opentelemetry.io/docs/specs/otel/protocol/exporter/) to apps is a universal way to configure the header.
 
 ## Memory exhaustion
 

src/frontend/src/content/docs/dashboard/standalone.mdx

@@ -47,8 +47,8 @@ docker run --rm -it -d `
 
 The preceding Docker command:
 
-- Starts a container from the `mcr.microsoft.com/dotnet/aspire-dashboard:9.5` image.
-- The container expose two ports:
+- Starts a container from the `mcr.microsoft.com/dotnet/aspire-dashboard:latest` image.
+- The container exposes two ports:
   - Mapping the dashboard's OTLP port `18889` to the host's port `4317`. Port `4317` receives OpenTelemetry data from apps. Apps send data using [OpenTelemetry Protocol (OTLP)](https://opentelemetry.io/docs/specs/otlp/).
   - Mapping the dashboard's port `18888` to the host's port `18888`. Port `18888` has the dashboard UI. Navigate to `http://localhost:18888` in the browser to view the dashboard.