I think this is how to update docs

website/docs/d/repository_file.html.markdown

@@ -0,0 +1,51 @@
+---
+layout: "github"
+page_title: "GitHub: github_repository_file"
+description: |-
+  Reads files within a GitHub repository
+---
+
+# github_repository_file
+
+This data source allows you to read files within a
+GitHub repository.
+
+
+## Example Usage
+
+```hcl
+data "github_repository_file" "foo" {
+  repository          = github_repository.foo.name
+  branch              = "main"
+  file                = ".gitignore"
+}
+
+```
+
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `repository` - (Required) The repository to create the file in.
+
+* `file` - (Required) The path of the file to manage.
+
+* `branch` - (Optional) Git branch (defaults to `main`).
+  The branch must already exist, it will not be created if it does not already exist.
+
+## Attributes Reference
+
+The following additional attributes are exported:
+
+* `content` - The file content.
+
+* `commit_sha` - The SHA of the commit that modified the file.
+
+* `sha` - The SHA blob of the file.
+
+* `commit_author` - Committer author name.
+
+* `commit_email` - Committer email address.
+
+* `commit_message` - Commit message when file was last updated.

website/github.erb

@@ -46,6 +46,9 @@
             <li>
               <a href="/docs/providers/github/d/repository.html">github_repository</a>
             </li>
+            <li>
+              <a href="/docs/providers/github/d/repository_file.html">github_repository_file</a>
+            </li>
             <li>
               <a href="/docs/providers/github/d/repository_milestone.html">github_repository_milestone</a>
             </li>