Added _index.md to docs/

content/en/docs/_index.md

+
+---
+title: "Tekton Documentation"
+linkTitle: "Documentation"
+weight: 20
+menu:
+  main:
+    weight: 20
+---
+
+Tekton is a Kubernetes-native continuous integration and delivery (CI/CD)
+solution. It allows developers to build, test, and deploy across cloud
+providers and on-premise systems.
+
+### What's next
+
+To get started, read the contents below. 
+
+{{% alert title="Note" color="success" %}}
+
+Tekton provides a nunmber of interactive tutorials at [try.tekton.dev](/try)
+for developers to get hands-on experience with the project.
+
+{{% /alert %}}