Update README.md to use 4.0.9 new tag.

README.md

@@ -12,6 +12,7 @@ This extension is tested with PHP versions:
 - 7.4
 - 8.0
 - 8.1
+- 8.2
 
 ## License
 `php-sweph` is work derived from the original release of the Astrodienst Swiss Ephemeris library.
@@ -32,7 +33,7 @@ _If you are on a Mac and use or want to use Homebrew, please see:_
 [Installation on macOS Big Sur](https://github.com/cyjoelchen/php-sweph/wiki/Install-on-macOS-Big-Sur.)
 
 ```
-git clone -b 4.0.8 https://github.com/cyjoelchen/php-sweph.git
+git clone -b 4.0.9 https://github.com/cyjoelchen/php-sweph.git
 cd php-sweph
 phpize
 ./configure