Create README.md

Author: cgiraldo

README.md

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+# charts
+Curated Big Data charts for Kubernetes.
+
+## Install chart from helm repository
+charts in charts/ folder are packaged and available at Gradiant's helm repo:  
+
+[https://gradiant.github.io/charts/](https://gradiant.github.io/charts/)
+
+You can add the helm repo to your Helm CLI:
+
+```
+helm repo add gradiant https://gradiant.github.io/charts/
+```
+
+Then you have a collection of charts available to install. For example, to install hdfs:
+
+```
+helm install --name hdfs gradiant/hdfs
+```
+
+## Install chart from release
+
+install using the URL of the release. For example, to install hdfs v0.1.0 chart:
+
+```
+helm install --name hdfs https://github.com/Gradiant/charts/releases/download/hdfs-0.1.0/hdfs-0.1.0.tgz
+```