docs: update readme

Author: Greg Bowler

README.md

@@ -100,13 +100,12 @@ PHP and PHPStan versions
 
 It's possible to run any version of PHPStan under any version of PHP, with any PHP extensions you require. This is configured with the following inputs:
 
-+ `version` - the version number of PHPStan to run e.g. `0.12.63` (default: latest)
-+ `php_version` - the version number of PHP to use e.g. `7.4` (default: latest)
++ `version` - the version number of PHPStan to run e.g. `1.10.14` (default: `composer`)
++ `php_version` - the version number of PHP to use e.g. `8.1` (default: `latest`)
 + `php_extensions` - a space-separated list of extensions to install using [php-build][php-build] e.g. `xdebug mbstring` (default: N/A)
 
 If you require a specific version combination that is not compatible with Github Actions for some reason, please make a request in the [Github issue tracker][issues].
 
-
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