Replace phpdoc.io domain to typelang.dev

Author: Kirill Nesmeyanov

README.md

@@ -19,7 +19,7 @@ Reference implementation for TypeLang Parser.
 **TypeLang** is a declarative type language inspired by static analyzers
 like [PHPStan](https://phpstan.org/) and [Psalm](https://psalm.dev/docs/).
 
-Read [documentation pages](https://phpdoc.io) for more information.
+Read [documentation pages](https://typelang.dev) for more information.
 
 ## Installation