Updated readme

Author: rennokki

README.md

@@ -3,12 +3,14 @@ PHP K8s
 
 ![CI](https://github.com/renoki-co/php-k8s/workflows/CI/badge.svg?branch=master)
 [![codecov](https://codecov.io/gh/renoki-co/php-k8s/branch/master/graph/badge.svg)](https://codecov.io/gh/renoki-co/php-k8s/branch/master)
-[![StyleCI](https://github.styleci.io/repos/259992525/shield?branch=master)](https://github.styleci.io/repos/:styleci_code)
+[![StyleCI](https://github.styleci.io/repos/259992525/shield?branch=master)](https://github.styleci.io/repos/259992525)
 [![Latest Stable Version](https://poser.pugx.org/renoki-co/php-k8s/v/stable)](https://packagist.org/packages/renoki-co/php-k8s)
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+![K8s Version](https://img.shields.io/badge/K8s%20Version-v1.17%2B-%23326ce5)
+
 PHP K8s is a PHP handler for the Kubernetes Cluster API, helping you handling the individual Kubernetes resources directly from PHP, like viewing, creating, updating or deleting resources.
 
 ## 🤝 Supporting

docs/RESOURCES.md

@@ -42,6 +42,14 @@ Each resource inherits a default "base" class that is making the Resource build-
 - [Role Bindings](kinds/RoleBinding.md)
 - [Cluster Role Bindings](kinds/ClusterRoleBinding.md)
 
+## Default Versions for Reosurces
+
+Since we support multiple K8s Cluster versions, some versions do promote certain resources to GA. Since each resource needs a default version, the package will set **the default versions for the oldest Kubernetes version supported**.
+
+For example, if the package supports `v1.17+`, then the package will make sure the versions are defaults for `v1.17`. In some cases, like Ingress in `v1.19` that switched from Beta to GA, that the `v1beta1` is no longer a default and instead, the `v1` is now a default. If `v1.17` is the oldest supported version, then it will stay to `v1beta`.
+
+The minimum Kubernetes version that is supported by a given package version can be found at the top of [README.md](../README.md).
+
 ## Work In Progress
 
 The following list of resources are work in progress and they will be available soon: