Fix directory name for translations and link to the documentation (#36)

README.md

@@ -27,7 +27,7 @@ File | Purpose
 `.github/ISSUE_TEMPLATE/issue.md` | Template for issues
 `.github/settings.yml` | Probot settings to control the repository settings.
 `.vscode/tasks.json` | Tasks for the devcontainer.
-`custom_components/blueprint/.translations/*` | [Translation files.](https://developers.home-assistant.io/docs/en/next/internationalization_custom_component_localization.html#translation-strings)
+`custom_components/blueprint/translations/*` | [Translation files.](https://developers.home-assistant.io/docs/internationalization/custom_integration)
 `custom_components/blueprint/__init__.py` | The component file for the integration.
 `custom_components/blueprint/binary_sensor.py` | Binary sensor platform for the integration.
 `custom_components/blueprint/config_flow.py` | Config flow file, this adds the UI configuration possibilities.