[DOCS] Update repository_environments documentation (#3266)

* Update repository_environments documentation

Added a note about permissions for GitHub API access.

* Update docs template

Signed-off-by: Timo Sand <timo.sand@f-secure.com>

---------

Signed-off-by: Timo Sand <timo.sand@f-secure.com>

Author: deiga

docs/data-sources/repository_environments.md

@@ -8,6 +8,8 @@ description: |-
 
 Use this data source to retrieve information about environments for a repository.
 
+~> Verify you have the correct permissions set up from the [GitHub API docs](https://docs.github.com/en/rest/deployments/environments?apiVersion=2022-11-28#get-an-environment--fine-grained-access-tokens)
+
 ## Example Usage
 
 ```terraform

templates/data-sources/repository_environments.md.tmpl

@@ -8,6 +8,8 @@ description: |-
 
 Use this data source to retrieve information about environments for a repository.
 
+~> Verify you have the correct permissions set up from the [GitHub API docs](https://docs.github.com/en/rest/deployments/environments?apiVersion=2022-11-28#get-an-environment--fine-grained-access-tokens)
+
 ## Example Usage
 
 {{ tffile "examples/data-sources/repository_environments/example_1.tf" }}