diff --git a/README.md b/README.md
index 802d338..f9c22a9 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,12 @@
 # Crossplane Composition Functions using KCL
 
-[![CI](https://kcl-lang.io/crossplane-kcl/actions/workflows/ci.yml/badge.svg)](https://kcl-lang.io/crossplane-kcl/actions/workflows/ci.yml)
+[![Go Report Card](https://goreportcard.com/badge/kcl-lang.io/crossplane-kcl)](https://goreportcard.com/report/kcl-lang.io/crossplane-kcl)
+[![GoDoc](https://godoc.org/kcl-lang.io/crossplane-kcl?status.svg)](https://godoc.org/kcl-lang.io/crossplane-kcl)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://kcl-lang.io/crossplane-kcl/blob/main/LICENSE)
+
+## Introduction
+
+Crossplane KCL function allows developers to use [KCL](https://kcl-lang.io/) (a DSL) to write composite logic without the need for repeated packaging of crossplane functions, and we support package management and the [KRM KCL specification](https://github.com/kcl-lang/krm-kcl), which allows for OCI/Git source and the reuse of [KCL's module ecosystem](https://artifacthub.io/packages/search?org=kcl&sort=relevance&page=1).
 
 ## Developing
 
@@ -31,9 +37,9 @@ A KRM YAML list which means that each document must have an `apiVersion`, `kind`
 Here's what you can do in the KCL script:
 
 + Return an error using `assert {condition}, {error_message}`.
-+ Read the `ObservedCompositeResource` from `option("params").oxr`.
-+ Read the `ObservedComposedResources` from `option("params").ocds`.
-+ Read the `DesiredCompositeResource` from `option("params").dxr`.
++ Read the `ObservedCompositeResource` from `option("oxr").oxr`.
++ Read the `ObservedComposedResources` from `option("ocds").ocds`.
++ Read the `DesiredCompositeResource` from `option("dxr").dxr`.
 + Read the `DesiredComposedResources` from `option("params").dcds`.
 + Read the environment variables. e.g. `option("PATH")` (**Not yet implemented**).
 
diff --git a/examples/resources/basic/README.md b/examples/resources/basic/README.md
index ec98048..3cd029e 100644
--- a/examples/resources/basic/README.md
+++ b/examples/resources/basic/README.md
@@ -17,9 +17,25 @@ kind: XR
 metadata:
   name: example-xr
 ---
+apiVersion: example.org/v1
+kind: Generated
+metadata:
+  annotations:
+    crossplane.io/composition-resource-name: ""
+  generateName: example-xr-
+  labels:
+    crossplane.io/composite: example-xr
+  ownerReferences:
+  - apiVersion: example.crossplane.io/v1
+    blockOwnerDeletion: true
+    controller: true
+    kind: XR
+    name: example-xr
+    uid: ""
+---
 apiVersion: render.crossplane.io/v1beta1
 kind: Result
-message: I was run with input "Hello world"!
+message: created resource ":Generated"
 severity: SEVERITY_NORMAL
-step: run-the-template
+step: normal
 ```
diff --git a/input/v1beta1/input.go b/input/v1beta1/input.go
index 387f66e..11ac579 100644
--- a/input/v1beta1/input.go
+++ b/input/v1beta1/input.go
@@ -49,7 +49,7 @@ func (in KCLInput) Validate() error {
 			}
 		}
 	default:
-		return field.Required(field.NewPath("spec.target"), fmt.Sprintf("invalid target %s", in.Spec.Target))
+		return field.Required(field.NewPath("spec.target"), fmt.Sprintf("invalid target: %s", in.Spec.Target))
 	}
 
 	return nil