v1.0.0: Fix string name and update README link
The string `step_count` was renamed to `step_count_title` in `app/src/main/res/values-zh/strings.xml`. The link in `README.md` was updated to point to the correct releases page.
The string `step_count` was renamed to `step_count_title` in `app/src/main/res/values-zh/strings.xml`. The link in `README.md` was updated to point to the correct releases page.