updated homebrew install/upgrade info based on changes to formula

README.md

@@ -57,24 +57,11 @@ Installing via this homebrew formula will always get you the latest composer ver
 2. Change into a project directory `cd /path/to/my/project`
 3. Use composer as you normally would `composer.phar install`
 
-To upgrade:
-
-1. run `brew uninstall composer ; brew install https://raw.github.com/gist/1574469/composer.rb`
-
-Install or Upgrade to the latest version of composer
----------------------------------------------------------------------
-
-
 *You will see a warning "Warning: Cannot verify package integrity"; however, this is benign and expected.*
 
-Verify
---------
-- composer.phar --version
-- brew home composer
-
-
-
+To upgrade:
 
+1. run `brew uninstall composer ; brew install https://raw.github.com/gist/1574469/composer.rb`
 
 Configuration
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