Support setting command in go-getter plugin

This allows one to use non-kustomization remote source

examples/README.md

@@ -12,59 +12,61 @@ Basic Usage
 
   * [configGenerations](configGeneration.md) -
    Rolling update when ConfigMapGenerator changes.
-   
+
   * [combineConfigs](combineConfigs.md) -
    Mixing configuration data from different owners
    (e.g. devops/SRE and developers).
-  
+
   * [generatorOptions](generatorOptions.md) -
-   Modifying behavior of all ConfigMap and Secret generators. 
+   Modifying behavior of all ConfigMap and Secret generators.
 
   * [vars](wordpress/README.md) - Injecting k8s runtime data into
      container arguments (e.g. to point wordpress to a SQL service) by vars.
- 
+
   * [image names and tags](image.md) - Updating image names and tags without applying a patch.
- 
+
   * [remote target](remoteBuild.md) - Building a kustomization from a github URL
- 
-  * [json patch](jsonpatch.md) - Apply a json patch in a kustomization    
+
+  * [json patch](jsonpatch.md) - Apply a json patch in a kustomization
 
   * [patch multiple objects](patchMultipleObjects.md) - Apply a patch to multiple objects
 
 Advanced Usage
-  
+
 - generator plugins:
-  
+
    * [last mile helm](chart.md) - Make last mile modifications to
      a helm chart.
-     
-   * [secret generation](secretGeneratorPlugin.md) - Generating secrets from a plugin. 
+
+   * [secret generation](secretGeneratorPlugin.md) - Generating secrets from a plugin.
+
+   * [remote sources](goGetterGeneratorPlugin.md) - Generating from remote sources.
 
 - transformer plugins:
    * [validation transformer](validationTransformer/README.md) -
    validate resources through a transformer
-  
+
 - customize builtin transformer configurations
-  
+
    * [transformer configs](transformerconfigs/README.md) - Customize transformer configurations
-   
+
 
 Multi Variant Examples
 
   * [hello world](helloWorld/README.md) - Deploy multiple
    (differently configured) variants of a simple Hello
    World server.
-  
+
   * [LDAP](ldap/README.md) - Deploy multiple
      (differently configured) variants of a LDAP server.
-     
+
   * [springboot](springboot/README.md) - Create a Spring Boot
    application production configuration from scratch.
 
   * [mySql](mySql/README.md) - Create a MySQL production
    configuration from scratch.
- 
+
   * [breakfast](breakfast.md) - Customize breakfast for
      Alice and Bob.
-     
-  * [multibases](multibases/README.md) - Composing three variants (dev, staging, production) with a common base.  
+
+  * [multibases](multibases/README.md) - Composing three variants (dev, staging, production) with a common base.