fix: add casbin-cpp to supported languages.

divy9881 · divy9881 · commit b85673432f8a · 2020-07-16T12:42:41.000+05:30
Signed-off-by: divy9881 &lt;divy9881@gmail.com&gt;
diff --git a/README.md b/README.md
@@ -27,10 +27,10 @@
 | [Casbin](https://github.com/casbin/casbin)                                             | [jCasbin](https://github.com/casbin/jcasbin)                                        | [node-Casbin](https://github.com/casbin/node-casbin)                                        | [PHP-Casbin](https://github.com/php-casbin/php-casbin)                                   |
 | production-ready                                                                       | production-ready                                                                    | production-ready                                                                            | production-ready                                                                         |
 
-| [![python](https://casbin.org/img/langs/python.png)](https://github.com/casbin/pycasbin) | [![dotnet](https://casbin.org/img/langs/dotnet.png)](https://github.com/casbin-net/Casbin.NET) | [![delphi](https://casbin.org/img/langs/delphi.png)](https://github.com/casbin4d/Casbin4D) | [![rust](https://casbin.org/img/langs/rust.png)](https://github.com/casbin/casbin-rs) |
-| ---------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------- |
-| [PyCasbin](https://github.com/casbin/pycasbin)                                           | [Casbin.NET](https://github.com/casbin-net/Casbin.NET)                                         | [Casbin4D](https://github.com/casbin4d/Casbin4D)                                           | [Casbin-RS](https://github.com/casbin/casbin-rs)                                      |
-| production-ready                                                                         | production-ready                                                                               | experimental                                                                               | production-ready                                                                                     |
+| [![python](https://casbin.org/img/langs/python.png)](https://github.com/casbin/pycasbin) | [![dotnet](https://casbin.org/img/langs/dotnet.png)](https://github.com/casbin-net/Casbin.NET) | [![c++](https://casbin.org/img/langs/cpp.png)](https://github.com/casbin/casbin-cpp) | [![rust](https://casbin.org/img/langs/rust.png)](https://github.com/casbin/casbin-rs) |
+| ---------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------- |
+| [PyCasbin](https://github.com/casbin/pycasbin)                                           | [Casbin.NET](https://github.com/casbin-net/Casbin.NET)                                         | [Casbin-CPP](https://github.com/casbin/casbin-cpp)                                   | [Casbin-RS](https://github.com/casbin/casbin-rs)                                      |
+| production-ready                                                                         | production-ready                                                                               | beta-test                                                                            | production-ready                                                                      |
 
 ## Documentation
 
