Update README.md

Author: codergeek121

README.md

@@ -1,7 +1,7 @@
 # EmailErrorReporter
 
 > [!CAUTION]
-> This is very early prototype
+> This is a very early prototype
 
 `email_error_reporter` uses the new [Rails error reporting API](https://guides.rubyonrails.org/error_reporting.html#error-reporting) to send emails whenever an exception is being reported. It works out of the box with HTTP requests, jobs and the rails runner.