Update readme, remove generated file

Author: mgoltzsche

Diff for: .gitignore

@@ -8,5 +8,5 @@
 /example/kpt/output-*
 !/example/kpt/output-helm-kustomize
 /example/kpt/output-helm-kustomize/output-kustomization
-/example/kpt/output-helm-kustomize/output-kustomization/static/manifest.yaml
+/example/kpt/output-helm-kustomize/static/manifest.yaml
 

Diff for: README.md

@@ -1,4 +1,4 @@
-# khelm ![GitHub workflow badge](https://github.com/mgoltzsche/khelm/workflows/Release/badge.svg) [![Go Report Card](https://goreportcard.com/badge/github.com/mgoltzsche/helm-kustomize-plugin)](https://goreportcard.com/report/github.com/mgoltzsche/helm-kustomize-plugin)
+# khelm ![GitHub workflow badge](https://github.com/mgoltzsche/khelm/workflows/Release/badge.svg) [![Go Report Card](https://goreportcard.com/badge/github.com/mgoltzsche/khelm)](https://goreportcard.com/report/github.com/mgoltzsche/khelm)
 
 A [Helm](https://github.com/helm/helm) chart templating CLI, helm to kustomize converter, [kpt](https://github.com/GoogleContainerTools/kpt) function and [kustomize](https://github.com/kubernetes-sigs/kustomize/) plugin.  
 
@@ -85,7 +85,7 @@ This can be done by declaring the khelm and a kustomize function orderly within
 
 ### kustomize exec plugin
 
-khelm can be used as [kustomize](https://github.com/kubernetes-sigs/kustomize) 3 exec plugin.
+khelm can be used as [kustomize](https://github.com/kubernetes-sigs/kustomize) 3 [exec plugin](https://kubectl.docs.kubernetes.io/guides/extending_kustomize/execpluginguidedexample/).
 Though plugin support in kustomize is still an alpha feature and may be removed in a future version.
 
 #### Plugin installation
@@ -103,8 +103,6 @@ mkdir -p $HOME/.config/kustomize/plugin/khelm.mgoltzsche.github.com/v1/chartrend
 mv $GOPATH/bin/khelm $HOME/.config/kustomize/plugin/khelm.mgoltzsche.github.com/v1/chartrenderer/ChartRenderer
 ```
 
-The general [kustomize plugin guide](https://kubectl.docs.kubernetes.io/guides/extending_kustomize/execpluginguidedexample/) provides more information.
-
 #### Plugin usage example
 
 A _plugin descriptor_ specifies the helm repository, chart, version and values that should be used in a kubernetes-style resource can be referenced in the `generators` section of a `kustomization.yaml` and can look as follows:
@@ -196,7 +194,7 @@ Unlike Helm khelm allows usage of any repository when `repositories.yaml` is not
 
 Build and test the khelm binary (requires Go 1.13) as well as the container image:
 ```sh
-make khelm test check image e2e-test
+make clean khelm test check image e2e-test
 ```
 _The dynamic binary is written to `build/bin/khelm` and the static binary to `build/bin/khelm-static`_.