datasource/gitlab_repository_file: cleanup for merge

Author: timofurrer

docs/data-sources/repository_file.md

@@ -3,14 +3,25 @@
 page_title: "gitlab_repository_file Data Source - terraform-provider-gitlab"
 subcategory: ""
 description: |-
-  Allows you to receive information about file in repository like name, size, content. File content is Base64 encoded. This endpoint can be accessed without authentication if the repository is publicly accessible.
+  The gitlab_repository_file data source allows details of a file in a repository to be retrieved.
+  Upstream API: GitLab REST API docs https://docs.gitlab.com/ee/api/repository_files.html
 ---
 
 # gitlab_repository_file (Data Source)
 
-Allows you to receive information about file in repository like name, size, content. File content is Base64 encoded. This endpoint can be accessed without authentication if the repository is publicly accessible.
+The `gitlab_repository_file` data source allows details of a file in a repository to be retrieved.
 
+**Upstream API**: [GitLab REST API docs](https://docs.gitlab.com/ee/api/repository_files.html)
 
+## Example Usage
+
+```terraform
+data "gitlab_repository_file" "example" {
+  project   = "example"
+  ref       = "main"
+  file_path = "README.md"
+}
+```
 
 <!-- schema generated by tfplugindocs -->
 ## Schema

examples/data-sources/gitlab_repository_file/data-source.tf

@@ -0,0 +1,5 @@
+data "gitlab_repository_file" "example" {
+  project   = "example"
+  ref       = "main"
+  file_path = "README.md"
+}

internal/provider/data_source_gitlab_repository_file.go

@@ -12,7 +12,10 @@ import (
 
 var _ = registerDataSource("gitlab_repository_file", func() *schema.Resource {
 	return &schema.Resource{
-		Description: "Allows you to receive information about file in repository like name, size, content. File content is Base64 encoded. This endpoint can be accessed without authentication if the repository is publicly accessible.",
+		Description: `The ` + "`gitlab_repository_file`" + ` data source allows details of a file in a repository to be retrieved.
+
+**Upstream API**: [GitLab REST API docs](https://docs.gitlab.com/ee/api/repository_files.html)`,
+
 		ReadContext: dataSourceGitlabRepositoryFileRead,
 		Schema: map[string]*schema.Schema{
 			"project": {

internal/provider/data_source_gitlab_repository_file_test.go

@@ -37,7 +37,6 @@ func testAccDataSourceGitlabRepositoryFile(src, n string) resource.TestCheckFunc
 		testAttributes := []string{
 			"project",
 			"file_path",
-			"file_path",
 			"size",
 			"encoding",
 			"content",