README.md in terraforming-0.1.6 vs README.md in terraforming-0.2.0

@@ -82,10 +82,14 @@
   terraforming vpc             # VPC
 ```
 
 ### Export tf
 
+```bash
+$ terraforming <resource>
+```
+
 (e.g. S3 buckets):
 
 ```bash
 $ terraforming s3
 ```
@@ -102,12 +106,16 @@
 }
 ```
 
 ### Export tfstate
 
-Specify `--tfstate` option (e.g. S3 buckets):
+```bash
+$ terraforming <resource> --tfstate [--merge TFSTATE_PATH] [--overwrite]
+```
 
+(e.g. S3 buckets):
+
 ```bash
 $ terraforming s3 --tfstate
 ```
 
 ```json
@@ -147,11 +155,10 @@
   }
 }
 ```
 
 If you want to merge exported tfstate to existing `terraform.tfstate`, specify `--tfstate --merge=/path/to/terraform.tfstate` option.
-This option does NOT overwrite existing `terraform.tfstate`, but flush output to stdout like others.
-You should copy output in stdout by hand or `pbcopy` command, and paste it to existing `terraform.tfstate`.
+You can overwrite existing `terraform.tfstate` by specifying `--overwrite` option together.
 
 Existing `terraform.tfstate`:
 
 ```bash
 # /path/to/terraform.tfstate