Correct URL to documentation

FlexBoom · web-flow · commit 683ab55f1a20 · 2024-01-17T10:42:01.000+01:00
diff --git a/README.md b/README.md
@@ -12,7 +12,7 @@ Correctly-rounded, arbitrary-precision decimal arithmetic for PHP
 
 ## Documentation
 
-See http://php-decimal.io
+See [php-decimal.github.io](https://php-decimal.github.io)
 
 ## Requirements
 
