Add README.md to kube-fledged helm chart

[senthilrch]

It is a good practice to include README.md in helm chart. Add a README.md file to kube-fledged's helm chart located in:
./deploy/kubefledged-operator/helm-charts/kubefledged

The README should have following info:-

• Short description of kube-fledged
  kube-fledged is a kubernetes operator for creating and managing a cache of container images directly on the worker nodes of a kubernetes cluster. It allows a user to define a list of images and onto which worker nodes those images should be cached (i.e. pulled). As a result, application pods start almost instantly, since the images need not be pulled from the registry. kube-fledged provides CRUD APIs to manage the lifecycle of the image cache, and supports several configurable parameters to customize the functioning as per one's needs.

• How to install the chart (https://github.com/senthilrch/kube-fledged#quick-install-using-helm-chart)

• Chart parameters (https://github.com/senthilrch/kube-fledged/blob/master/docs/helm-parameters.md)

[senthilrch]

SODACODE22: Raise PR against "develop" branch.

[anubhav06]

• Short description of kube-fledged
  kube-fledged is a kubernetes operator for creating and managing a cache of container images directly on the worker nodes of a kubernetes cluster. It allows a user to define a list of images and onto which worker nodes those images should be cached (i.e. pulled). As a result, application pods start almost instantly, since the images need not be pulled from the registry. kube-fledged provides CRUD APIs to manage the lifecycle of the image cache, and supports several configurable parameters to customize the functioning as per one's needs.

Hi! The README should contain the exact description which you have mentioned and nothing in addition to that, right ?

[senthilrch]

Yes right!

[anubhav06]

Great! Can I work on this ?

[senthilrch]

Yes