readme: update

dg · dg · commit 76ad266f73cd · 2019-03-26T12:12:45.000+01:00
diff --git a/readme.md b/readme.md
@@ -29,7 +29,7 @@ The recommended way to install is via Composer:
 composer require nette/http
 ```
 
-It requires PHP version 5.6 and supports PHP up to 7.3. The dev-master version requires PHP 7.1.
+It requires PHP version 7.1 and supports PHP up to 7.3.
 
 
 HTTP Request
