Update README.md

Author: mpkelly

README.md

@@ -7,4 +7,4 @@ The [workflow](.github/workflows/wpcom.yml) does the following:
 - Runs the composer action which executes the default command, `composter install`.
 - Runs the composer action again with a custom command that runs PHPCodeSniffer
 - Runs the composer action again with a custom command that runs PHPUnit
-- If all previous actions completely withotu error, it creates a build artifact with name "wpcom" which is required for WordPress.com's GitHub Deployment feature
+- If all previous actions completely without error, it creates a build artifact with name "wpcom" which is required for WordPress.com's GitHub Deployment feature