Merge pull request #1240 from donal-lgc/patch-1

Fix broken dotnetfoundation project link and icon

readme.md

@@ -1,6 +1,6 @@
 <p><img src="https://raw.github.com/Humanizr/Humanizer/master/logo.png" alt="Logo" style="max-width:100%;" /></p>
 
-[<img align="right" width="100px" src="https://dotnetfoundation.org/img/logo_big.svg" />](https://dotnetfoundation.org/projects?type=project&q=humanizer)
+[<img align="right" width="100px" src="https://old.dotnetfoundation.org/img/logo_big.svg" />](https://old.dotnetfoundation.org/projects/humanizer)
 
 Humanizer meets all your .NET needs for manipulating and displaying strings, enums, dates, times, timespans, numbers and quantities. It is part of the [.NET Foundation](https://www.dotnetfoundation.org/), and operates under their [code of conduct](https://www.dotnetfoundation.org/code-of-conduct). It is licensed under the [MIT](https://opensource.org/licenses/MIT) (an OSI approved license).