docs(credential-provider-sso): English fixes, clarification (#2488)

packages/credential-provider-sso/README.md

@@ -5,12 +5,15 @@
 
 ## AWS Credential Provider for Node.js - AWS Single Sign-On (SSO)
 
-This module provides a function, `fromSSO` that will create `CredentialProvider`
-functions that read from [AWS SDKs and Tools shared configuration and credentials files](https://docs.aws.amazon.com/credref/latest/refdocs/creds-config-files.html)(Profile appears
-in the credentials file will be given precedence over the profile found in the
-config file). This provider will load the _resolved_ access token on local disk,
-and then request temporary AWS credentials. For the guidance over AWS Single
-Sign-On service, please refer to [the service document](https://aws.amazon.com/single-sign-on/).
+This module provides a function, `fromSSO`, that creates
+`CredentialProvider` functions that read from [AWS SDKs and Tools
+shared configuration and credentials
+files](https://docs.aws.amazon.com/credref/latest/refdocs/creds-config-files.html).
+Profiles in the `credentials` file are given precedence over
+profiles in the `config` file. This provider loads the
+_resolved_ access token from local disk then requests temporary AWS
+credentials. For guidance on the AWS Single Sign-On service, please
+refer to [AWS's Single Sign-On documentation](https://aws.amazon.com/single-sign-on/).
 
 ## Supported configuration
 
@@ -26,16 +29,16 @@ the `fromSSO` factory function. The following options are supported:
 - `configFilepath` - The path to the shared config file. If not specified, the
   provider will use the value in the `AWS_CONFIG_FILE` environment variable or
   `~/.aws/config` by default.
-- `ssoClient` - The SSO Client that used to request AWS credentials with the SSO
+- `ssoClient` - The SSO Client used to request AWS credentials with the SSO
   access token. If not specified, a default SSO client will be created with the
   region specified in the profile `sso_region` entry.
 
-## SSO Login with AWS CLI
+## SSO Login with the AWS CLI
 
-This credential provider relies on [AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-sso.html#sso-configure-profile)
-to login to an AWS SSO session. Here's a brief walk-through:
+This credential provider relies on the [AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/cli-configure-sso.html#sso-configure-profile)
+to log into an AWS SSO session. Here's a brief walk-through:
 
-1. Create a new AWS SSO enabled profile using AWS CLI. It will ask you to login
+1. Create a new AWS SSO enabled profile using the AWS CLI. It will ask you to login
    to your AWS SSO account and prompt for the name of the profile:
 
 ```console
@@ -45,7 +48,7 @@ $ aws configure sso
 CLI profile name [123456789011_ReadOnly]: my-sso-profile<ENTER>
 ```
 
-2. Configure you SDK client with the SSO credential provider:
+2. Configure your SDK client with the SSO credential provider:
 
 ```javascript
 import { fromSSO } from "@aws-sdk/credential-provider-sso"; // ES6 example
@@ -54,8 +57,8 @@ import { fromSSO } from "@aws-sdk/credential-provider-sso"; // ES6 example
 const client = new FooClient({ credentials: fromSSO({ profile: "my-sso-profile" });
 ```
 
-Alternatively, the SSO credential provider is supported in default Node.js credential
-provider:
+Alternatively, the SSO credential provider is supported as a default
+Node.js credential provider:
 
 ```javascript
 import { defaultProvider } from "@aws-sdk/credential-provider-node"; // ES6 example
@@ -64,7 +67,7 @@ import { defaultProvider } from "@aws-sdk/credential-provider-node"; // ES6 exam
 const client = new FooClient({ credentials: defaultProvider({ profile: "my-sso-profile" });
 ```
 
-3. To log out from the current SSO session, use AWS CLI:
+3. To log out from the current SSO session, use the AWS CLI:
 
 ```console
 $ aws sso logout