Fix
* **fetcher:** Fix test_sierra_fetcher to test_ssample_fetcher function name ([`884c806`](https://github.com/entelecheia/hyfi-fetcher/commit/884c806d4ab6bff70e3050fa2eecac8aec711af0))
* **sierra:** Fix issue with missing or incorrect article links ([`e8564d5`](https://github.com/entelecheia/hyfi-fetcher/commit/e8564d51a1dba2890f195f6f29de87cbf4c81f60))