Update README.md

Author: pkosterman

README.md

@@ -14,7 +14,7 @@ For more information, please visit [the documentation](https://docs.passkit.io).
 - [Author & License](#author--license)
 
 ## Requirements
-1. PHP 7.0 or higher
+1. PHP 7.0 or higher.
 2. PECL.
 3. Composer.
 4. A PassKit account; sign up for free at [https://app.passkit.com](https://app.passkit.com/signup).
@@ -187,4 +187,4 @@ Send bug reports, feature requests and code contributions into this repository.
 ## Author & License
 PassKit Inc.: [support@passkit.com](mailto:support@passkit.com)
 
-Distributed under MIT License. Details available in [license file](LICENSE).
+Distributed under MIT License. Details available in [license file](LICENSE).