Updated messages and correcteed repository URL information.

overview.md

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+# Azure Federated Auth Task
+
+`AzureFederatedAuth@1` is an Azure Pipelines task that requests an OIDC token for an AzureRM service connection configured for workload identity federation.
+
+It is designed for pipelines that need ARM federation variables without storing long-lived secrets.
+
+## What It Sets
+
+- `ARM_OIDC_TOKEN` (secret)
+- `ARM_TENANT_ID`
+- `ARM_CLIENT_ID`
+- `GIT_ACCESS_TOKEN` (secret, optional)
+
+## Task Input
+
+- `serviceConnectionARM` (required): Azure Resource Manager service connection
+- `setGitAccessToken` (optional): exchanges OIDC assertion for Azure DevOps scope and sets `GIT_ACCESS_TOKEN`
+
+## Prerequisites
+
+- AzureRM service connection using workload identity federation
+- Pipeline access to `System.AccessToken`
+- Linux YAML agents
+
+## Example
+
+```yaml
+- task: AzureFederatedAuth@1
+  inputs:
+    serviceConnectionARM: 'my-arm-service-connection'
+    setGitAccessToken: true
+```
+
+## Repository
+
+https://gitea.koszewscy.waw.pl/koszewscy/ado-azurefederatedauth-task.git