Replace vcpkg.link with vcpkg.io [ci skip]

vcpkg.link seems not to be updated since July 2025

Author: martinmoene

README.md

@@ -1,6 +1,6 @@
 # string lite: string algorithms for C++11 and later
 
-[![Language](https://img.shields.io/badge/C%2B%2B-11/14/17/20/23-blue.svg)](https://en.wikipedia.org/wiki/C%2B%2B#Standardization) [![License](https://img.shields.io/badge/license-BSL-blue.svg)](https://opensource.org/licenses/BSL-1.0) [![Build Status](https://github.com/martinmoene/string-lite/actions/workflows/ci.yml/badge.svg)](https://github.com/martinmoene/string-lite/actions/workflows/ci.yml) [![Version](https://badge.fury.io/gh/martinmoene%2Fstring-lite.svg)](https://github.com/martinmoene/string-lite/releases) [![download](https://img.shields.io/badge/latest-download-blue.svg)](https://github.com/martinmoene/string-lite/blob/master/include/nonstd/string.hpp) [![Vcpkg](https://img.shields.io/badge/on-vcpkg-blue.svg)](https://vcpkg.link/ports/string-lite) [![Try it on wandbox](https://img.shields.io/badge/on-wandbox-blue.svg)](https://wandbox.org/permlink/merJtbaTAIq2lE9s) [![Try it on godbolt online](https://img.shields.io/badge/on-godbolt-blue.svg)](https://godbolt.org/z/bW7TYP7xv)
+[![Language](https://img.shields.io/badge/C%2B%2B-11/14/17/20/23-blue.svg)](https://en.wikipedia.org/wiki/C%2B%2B#Standardization) [![License](https://img.shields.io/badge/license-BSL-blue.svg)](https://opensource.org/licenses/BSL-1.0) [![Build Status](https://github.com/martinmoene/string-lite/actions/workflows/ci.yml/badge.svg)](https://github.com/martinmoene/string-lite/actions/workflows/ci.yml) [![Version](https://badge.fury.io/gh/martinmoene%2Fstring-lite.svg)](https://github.com/martinmoene/string-lite/releases) [![download](https://img.shields.io/badge/latest-download-blue.svg)](https://github.com/martinmoene/string-lite/blob/master/include/nonstd/string.hpp) [![Vcpkg](https://img.shields.io/badge/on-vcpkg-blue.svg)](https://vcpkg.io/en/package/string-lite) [![Try it on wandbox](https://img.shields.io/badge/on-wandbox-blue.svg)](https://wandbox.org/permlink/merJtbaTAIq2lE9s) [![Try it on godbolt online](https://img.shields.io/badge/on-godbolt-blue.svg)](https://godbolt.org/z/bW7TYP7xv)
 
 **Note**: this library was previously named *string-bare*, the original *string-lite* has been renamed to [*string-non-lite*](https://github.com/martinmoene/string-non-lite).