Fix punctuation and link issues in README.md

README.md

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 ### Notes for PyPI Users
 
-This release (`1.1.0`) of GatorGrader is intended to be a stop-gap solution. It is released from the [`feature/publish-to-pypi` branch](https://github.com/GatorEducator/gatorgrader/tree/feature/publish-to-pypi) on GitHub. In future versions, some changes may be made to the structure and distribution of this package! Additionally, the documentation available in the rest of this document may or may not be fully accurate. For users who just wish to use GatorGrader on the command line, all that is needed is to install this package and run `gatorgrader`! For help on syntax and available options, see `gatorgrader --help`.
+This release (`1.1.0`) of GatorGrader is intended to be a stop-gap solution. It is released from the [`feature/publish-to-pypi`](https://github.com/GatorEducator/gatorgrader/tree/feature/publish-to-pypi) branch on GitHub. In future versions, some changes may be made to the structure and distribution of this package. Additionally, the documentation available in the rest of this document may or may not be fully accurate. For users who just wish to use GatorGrader on the command line, all that is needed is to install this package and run `gatorgrader`. For help on syntax and available options, see `gatorgrader --help`.
 
 For users who would like to interact with GatorGrader programmatically, refer to the docstrings available in `gatorgrader.py` and `gator/__init__.py` (or view them in your editor-of-choice with support for a [Python Language Server](https://marketplace.visualstudio.com/items?itemName=ms-python.vscode-pylance)). In summary, however, GatorGrader can be run by importing the `gator` package and calling `gator.grader(["list", "--of", "command", "--line", "arguments"])`, the syntax of which matches previous versions of GatorGrader. For additional help or guidance, see `gatorgrader --help` or reach out to any of the core maintainers.