docs/provider: Grammatical changes (#16149)

* Update index.html.markdown

* Update website/docs/index.html.markdown

Co-authored-by: Brian Flad <bflad417@gmail.com>

website/docs/index.html.markdown

@@ -67,8 +67,8 @@ explained below:
 
 ### Static Credentials
 
-!> **Warning:** Hard-coding credentials into any Terraform configuration is not
-recommended, and risks secret leakage should this file ever be committed to a
+!> **Warning:** Hard-coded credentials are not recommended in any Terraform
+configuration and risks secret leakage should this file ever be committed to a
 public version control system.
 
 Static credentials can be provided by adding an `access_key` and `secret_key`
@@ -199,27 +199,27 @@ for more information about connecting to alternate AWS endpoints or AWS compatib
 * `shared_credentials_file` = (Optional) This is the path to the shared credentials file.
   If this is not set and a profile is specified, `~/.aws/credentials` will be used.
 
-* `token` - (Optional) Session token for validating temporary credentials. Typically provided after successful identity federation or Multi-Factor Authentication (MFA) login. With MFA login, this is the session token provided afterwards, not the 6 digit MFA code used to get temporary credentials.  It can also be sourced from the `AWS_SESSION_TOKEN` environment variable.
+* `token` - (Optional) Session token for validating temporary credentials. Typically provided after successful identity federation or Multi-Factor Authentication (MFA) login. With MFA login, this is the session token provided afterward, not the 6 digit MFA code used to get temporary credentials.  It can also be sourced from the `AWS_SESSION_TOKEN` environment variable.
 
 * `max_retries` - (Optional) This is the maximum number of times an API
   call is retried, in the case where requests are being throttled or
   experiencing transient failures. The delay between the subsequent API
-  calls increases exponentially. If omitted, default value is `25`.
+  calls increases exponentially. If omitted, the default value is `25`.
 
 * `allowed_account_ids` - (Optional) List of allowed AWS
   account IDs to prevent you from mistakenly using an incorrect one (and
   potentially end up destroying a live environment). Conflicts with
   `forbidden_account_ids`.
 
 * `forbidden_account_ids` - (Optional) List of forbidden
-  AWS account IDs to prevent you mistakenly using a wrong one (and
+  AWS account IDs to prevent you from mistakenly using the wrong one (and
   potentially end up destroying a live environment). Conflicts with
   `allowed_account_ids`.
 
 * `ignore_tags` - (Optional) Configuration block with resource tag settings to ignore across all resources handled by this provider (except any individual service tag resources such as `aws_ec2_tag`) for situations where external systems are managing certain resource tags. Arguments to the configuration block are described below in the `ignore_tags` Configuration Block section. See the [Terraform multiple provider instances documentation](/docs/configuration/providers.html#alias-multiple-provider-instances) for more information about additional provider configurations.
 
 * `insecure` - (Optional) Explicitly allow the provider to
-  perform "insecure" SSL requests. If omitted, default value is `false`.
+  perform "insecure" SSL requests. If omitted, the default value is `false`.
 
 * `skip_credentials_validation` - (Optional) Skip the credentials
   validation via the STS API. Useful for AWS API implementations that do
@@ -411,4 +411,4 @@ Approaches differ per authentication providers:
       need to be _assuming_ an IAM role which allows `iam:ListRoles`.
       Used in Terraform `0.6.16+`.
       There used to be no better way to get account ID out of the API
-      when using federated account until `sts:GetCallerIdentity` was introduced.
+      when using the federated account until `sts:GetCallerIdentity` was introduced.