DOCSP-48942: add ARN env var assignment (#484)

* DOCSP-48942: add ARN env var assignment

* small fixes

* small fixes

Author: rustagir

source/fundamentals/auth.txt

@@ -4,8 +4,6 @@
 Authentication Mechanisms
 =========================
 
-.. default-domain:: mongodb
-
 .. contents:: On this page
    :local:
    :backlinks: none
@@ -199,22 +197,23 @@ user.
 To connect to a MongoDB instance with ``MONGODB-AWS`` authentication enabled,
 specify the ``MONGODB-AWS`` authentication mechanism.
 
-The driver checks for your credentials in the following sources in the order
-they are listed:
+The driver checks for your credentials in the following sources in the
+order listed:
 
-1. Connection string
-#. Environment variables
-#. Web identity token file
-#. AWS ECS endpoint specified in the ``AWS_CONTAINER_CREDENTIALS_RELATIVE_URI``
-   environment variable
-#. AWS EC2 endpoint. For more information, see `IAM Roles for Tasks
-   <https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-iam-roles.html>`_.
+1. Connection string.
+#. Environment variables.
+#. Web identity token file.
+#. AWS ECS endpoint specified in the
+   ``AWS_CONTAINER_CREDENTIALS_RELATIVE_URI`` environment variable.
+#. AWS EC2 endpoint. To learn more, see `IAM Roles for Tasks
+   <https://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-iam-roles.html>`__
+   in the AWS documentation.
 
 .. important::
 
    The driver obtains the credentials only from the first source in which they are found.
    For example, if you specify your AWS credentials in the connection string, the
-   driver ignores any credentials that you have specified in environment variables.
+   driver ignores any credentials that you specify in environment variables.
 
 .. tabs::
 
@@ -273,17 +272,26 @@ they are listed:
    .. tab:: Web Identity Token File
       :tabid: web-identity-token-file
 
-      You can use the OpenID Connect (OIDC) token obtained from a web identity provider to authenticate
-      to Amazon Elastic Kubernetes Service (EKS) or other services.
-      To use an OIDC token, create a file that contains your token, then 
-      set the absolute path to this file in an environment variable by using
-      a shell as shown in the following example:
+      You can use the OpenID Connect (OIDC) token obtained from a web
+      identity provider to authenticate to Amazon Elastic Kubernetes
+      Service (EKS) or other services. To use an OIDC token, create or
+      locate the file that contains your token. Then, set the following
+      environment variables:
+
+      - ``AWS_WEB_IDENTITY_TOKEN_FILE``: Set to the absolute path of the
+        file that contains your OIDC token.
+
+      - ``AWS_ROLE_ARN``: Set to the IAM role used to connect to your
+        cluster. For example: ``arn:aws:iam::111122223333:role/my-role``.
+     
+      The following shell command sets these environment variables:      
 
       .. code-block:: bash
 
-         export AWS_WEB_IDENTITY_TOKEN_FILE=<absolute path to file containing your OIDC token>
+         export AWS_WEB_IDENTITY_TOKEN_FILE=<absolute path to file that contains OIDC token>
+         export AWS_ROLE_ARN=<IAM role name>
 
-      After you've set the preceding environment variable, specify the ``MONGODB-AWS``
+      After you set the preceding environment variables, specify the ``MONGODB-AWS``
       authentication mechanism as shown in the following example:
 
       .. literalinclude:: /includes/fundamentals/code-snippets/authentication/aws-environment-variables.go

source/fundamentals/crud/read-operations.txt

@@ -11,6 +11,7 @@ Read Operations
    :caption: Read Operations
 
    Query </fundamentals/crud/read-operations/query-document>
+   Retrieve Data </fundamentals/crud/read-operations/retrieve>
    Count Documents </fundamentals/crud/read-operations/count>
    Data Cursors </fundamentals/crud/read-operations/cursor>
    Distinct Field Values </fundamentals/crud/read-operations/distinct>
@@ -22,8 +23,8 @@ Read Operations
    Monitor Data Changes </fundamentals/crud/read-operations/changestream>
 
 - :ref:`golang-query-document`
-- :ref:`golang-count-documents`
 - :ref:`golang-retrieve`
+- :ref:`golang-count-documents`
 - :ref:`golang-cursor`
 - :ref:`golang-retrieve-distinct`
 - :ref:`golang-sort-results`

source/fundamentals/crud/read-operations/retrieve.txt

@@ -4,8 +4,6 @@
 Retrieve Data
 ==============
 
-.. default-domain:: mongodb
-
 .. contents:: On this page
    :local:
    :backlinks: none

source/usage-examples/count.txt

@@ -1,10 +1,8 @@
 .. _golang-count-usage-example:
 
-=============================
+==============================
 Count Documents Method Example
-=============================
-
-.. default-domain:: mongodb
+==============================
 
 You can get an approximation on the number of documents in a
 collection by using the ``EstimatedDocumentCount()`` method and an exact