fix: fixup aws detector readme (#2379)

Author: legendecas

packages/opentelemetry-resource-detector-aws/README.md

@@ -19,7 +19,7 @@ npm install --save @opentelemetry/resource-detector-aws
 
 ```typescript
 import { detectResources } from '@opentelemetry/resources';
-import { awsBeanstalkDetector } from '@opentelemetry/resource-detector-aws'
+import { awsEc2Detector } from '@opentelemetry/resource-detector-aws'
 const resource = await detectResources({
    detectors: [awsEc2Detector],
 })

packages/opentelemetry-resource-detector-aws/src/detectors/AwsEc2Detector.ts

@@ -48,7 +48,7 @@ class AwsEc2Detector implements Detector {
 
   /**
    * Attempts to connect and obtain an AWS instance Identity document. If the
-   * connection is succesful it returns a promise containing a {@link Resource}
+   * connection is successful it returns a promise containing a {@link Resource}
    * populated with instance metadata. Returns a promise containing an
    * empty {@link Resource} if the connection or parsing of the identity
    * document fails.