feat: add basic example of usage

examples/get_issue.py

@@ -0,0 +1,27 @@
+import os
+from asyncio import run
+
+from dotenv import load_dotenv
+
+from ya_tacker_client import YaTrackerClient
+
+
+load_dotenv()
+# from registered application at Yandex OAuth - https://oauth.yandex.ru/
+API_TOKEN = os.getenv('API_TOKEN')
+# from admin panel at Yandex Tracker - https://tracker.yandex.ru/admin/orgs
+API_ORGANISATION_ID = os.getenv('API_ORGANISATION_ID')
+
+
+async def main() -> None:
+    client = YaTrackerClient(
+        organisation_id=API_ORGANISATION_ID,
+        oauth_token=API_TOKEN,
+    )
+    issue = await client.get_issue('TRACKER-1')
+    print(issue)
+    await client.stop()
+
+
+if __name__ == '__main__':
+    run(main())