[docs] Fix in README

3rd party is already unofficial, no need to mention unofficial for only one client.

README.md

@@ -116,7 +116,7 @@ You can use Kutt as your default URL shortener in [ShareX](https://getsharex.com
 ## 3rd Party API packages
 | Language  | Link                                                       | Description                                       |
 |-----------|------------------------------------------------------------|---------------------------------------------------|
-| C# (.NET) | [KuttSharp](https://github.com/0xaryan/KuttSharp)          | Unofficial .NET package for Kutt.it url shortener |
+| C# (.NET) | [KuttSharp](https://github.com/0xaryan/KuttSharp)          | .NET package for Kutt.it url shortener            |
 | Python    | [kutt-cli](https://github.com/univa64/kutt-cli)            | Command-line client for Kutt written in Python    |
 | Ruby      | [kutt.rb](https://github.com/univa64/kutt.rb)              | Kutt library written in Ruby                      |
 | Node.js   | [node-kutt](https://github.com/ardalanamini/node-kutt)     | Node.js client for Kutt.it url shortener          |