fix typos (#645)

Author: Liujingfang1

examples/transformerconfigs/README.md

@@ -87,7 +87,7 @@ nameReference:
     (etc.)    
 ```
 
-## cusotmizing transformer configurations
+## customizing transformer configurations
 
 Kustomize has a default set of configurations. They can be saved to local directory through `kustomize config save -d`. Kustomize allows modifying those configuration files and using them in kustomization.yaml file. This tutorial shows how to customize those configurations to
 - [support a CRD type](crd/README.md)

examples/transformerconfigs/crd/README.md

@@ -17,7 +17,7 @@ Get the default transformer configurations using this command:
 kustomize config save -d $DEMO_HOME/kustomizeconfig
 ```
 The default configurations are saved
-in the directory `$DEMO_HOME/kusotmizeconfig` as several files
+in the directory `$DEMO_HOME/kustomizeconfig` as several files
 
 > ```
 > commonannotations.yaml