Add translation example

README.md

@@ -27,6 +27,7 @@ File | Purpose
 `.github/ISSUE_TEMPLATE/issue.md` | Template for issues
 `.github/settings.yml` | Probot settings to control the repository settings.
 `.vscode/taks.json` | Tasks for the devcontainer.
+`custom_components/blueprint/.translations/sensor.nb.json` | [Translation files.](https://developers.home-assistant.io/docs/en/next/internationalization_custom_component_localization.html#translation-strings)
 `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/const.py` | A file to hold shared variables/constants for the entire integration.

custom_components/blueprint/.translations/sensor.nb.json

@@ -0,0 +1,5 @@
+{
+    "state": {
+        "Some sample static text.": "Eksempel tekst."
+    }
+}

custom_components/blueprint/sensor.py

@@ -29,7 +29,7 @@ class BlueprintSensor(Entity):
 
         # Check the data and update the value.
         if updated.get("static") is None:
-            self._state = self._status
+            self._state = self._state
         else:
             self._state = updated.get("static")