Update documenation for HCL enables aws_secretsmanager function

website/pages/docs/from-1.5/functions/contextual/aws_secretsmanager.mdx

@@ -12,20 +12,22 @@ Secrets can be read from the [AWS Secrets
 Manager](https://aws.amazon.com/secrets-manager/) and used within your template
 as locals.
 
+~> Note: Support for AWS secrets will always obtain the latest version of a secret, essentially
+AWSCURRENT. Support for previous versions of a secret is not supported.
+
 ```hcl
 aws_secretsmanager(name, key)
 ```
 
 When key is not set (`null` or empty: `""`) then `aws_secretsmanager` returns
-the first secret key stored in secret `name` using the `AWSCURRENT`.
+the first secret key stored in secret `name`.
 
 You can either use this function in a `locals` block or directly inline where
 you want to use the value.
 
 ```hcl
 locals {
-  // null is equivalent to "AWSCURRENT"
-  current_version = aws_secretsmanager("my_secret", null)
+  secret = aws_secretsmanager("my_secret", null)
 }
 
 source "null" "first-example" {
@@ -38,13 +40,50 @@ build {
 
   provisioner "shell-local" {
     environment_vars = ["TESTVAR=${build.PackerRunUUID}"]
-    inline = ["echo current version is '${local.current_version}'",
-              "echo previous version is '${aws_secretsmanager("my_secret", "AWSPREVIOUS")}'."]
+    inline = ["echo my_secret is '${local.secret}'",
+              "echo my_secret using an inline call is '${aws_secretsmanager("my_secret", null)}'."]
   }
 }
 ```
 
-This will load the key stored at behind `my_secret` from aws secrets manager.
+This will load the key stored behind `my_secret` from aws secrets manager.
+
+The retrieval of single key secrets or plaintext secrets can be obtained by specifying (`null` or empty: `""`) as the `key`.
+
+
+When obtaining secrets that have multiple keys you can set `key` to the specific key you would like
+to fetch. For example, given the following secret with two keys if `key` is set to "shell" `aws_secretsmanager` will
+return only its value.
+
+```json
+{
+    "test": "kitchen",
+    "shell": "powershell"
+}
+```
+
+```hcl
+locals {
+  secret = aws_secretsmanager("multikey/secret", "shell")
+}
+
+source "null" "first-example" {
+  communicator = "none"
+}
+
+build {
+  name = "my-build-name"
+  sources = ["null.first-example"]
+
+  provisioner "shell-local" {
+    environment_vars = ["TESTVAR=${build.PackerRunUUID}"]
+    inline = ["echo my_secret is '${local.secret}'"]
+  }
+}
+```
+
+This will load the value `"powershell"` stored in the key `"shell"` behind `multikey/secret`.
+
 
 
 In order to use this function you have to configure valid AWS credentials using