README.md in ssmd-0.7.3 vs README.md in ssmd-0.7.4

@@ -1,10 +1,10 @@
 # SSMD
 
 [![Build Status](https://travis-ci.org/machisuji/ssmd.svg?branch=master)](https://travis-ci.org/machisuji/ssmd)
 
-Speech Synthesis Markdown (SSMD) is an lightweight alternative syntax for [SSML](https://www.w3.org/TR/speech-synthesis/).
+Speech Synthesis Markdown (SSMD) is a lightweight alternative syntax for [SSML](https://www.w3.org/TR/speech-synthesis/).
 This repository contains both the reference implementation of the SSMD-to-SSML conversion tool (`ssmd`) as well
 as the [specification](SPECIFICATION.md) of the language.
 
 ## Requirements
 
@@ -26,17 +26,32 @@
 
     $ gem install ssmd
 
 ## Usage
 
+You can convert SSML to SSMD using `SSMD::to_ssml`:
+
 ```ruby
 require 'ssmd'
 
 ssmd = "hello *SSMD*!"
 ssml = SSMD.to_ssml ssmd
 
 puts ssml
 # Output: <speak>hello <emphasis>SSMD</emphasis>!</speak>
+```
+
+Sometimes you will want to see just the plain text without any SSMD annotations.
+For this you can use `SSMD::stip_ssmd`:
+
+```ruby
+require 'ssmd'
+
+ssmd = "[hallo](de) *SSMD*!"
+plain_text = SSMD.strip_ssmd ssmd
+
+puts plain_text
+# Output: hallo SSMD!
 ```
 
 **Note:**
 
 This version is still under development. See below which essential SSML constructs are implemented so far: