[exporter/datadog] fix(docs): typo with especially (open-telemetry#28996)

Author: karmingc

exporter/datadogexporter/README.md

@@ -52,7 +52,7 @@ The exact values for `send_batch_size` and `send_batch_max_size` depends on your
 
 ### Fall back to the Zorkian metric client with feature gate
 
-Since [v0.69.0](https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.69.0), the Datadog exporter has switched to use the native metric client `datadog-api-client-go` for metric export instead of Zorkian client by default. While `datadog-api-client-go` fixed several issues that are present in Zorkian client, there is a performance regression with it compared to Zorkian client espeicially under high metric volume. If you observe memory or throughput issues in the Datadog exporter with `datadog-api-client-go`, you can configure the Datadog exporter to fall back to the Zorkian client by disabling the feature gate `exporter.datadogexporter.metricexportnativeclient`, e.g.
+Since [v0.69.0](https://github.com/open-telemetry/opentelemetry-collector-contrib/releases/tag/v0.69.0), the Datadog exporter has switched to use the native metric client `datadog-api-client-go` for metric export instead of Zorkian client by default. While `datadog-api-client-go` fixed several issues that are present in Zorkian client, there is a performance regression with it compared to Zorkian client especially under high metric volume. If you observe memory or throughput issues in the Datadog exporter with `datadog-api-client-go`, you can configure the Datadog exporter to fall back to the Zorkian client by disabling the feature gate `exporter.datadogexporter.metricexportnativeclient`, e.g.
 ```
 otelcol --config=config.yaml --feature-gates=-exporter.datadogexporter.metricexportnativeclient
 ```