README.md in purecss-0.5.0.1 vs README.md in purecss-0.5.0.2

@@ -47,10 +47,11 @@
 
 If it is too long for you, you can avoid touching the manifest files and run the generator (with optional parameter responsive/nonresponsive):
 
     $ rails generate purecss:install
 
+To add the viewport meta in the head of your application.html.erb it is enough to append `--add_viewport_meta` when you run the generator.
 
 ## Usage
 
 After the installation you can simply go to [purecss.io](http://purecss.io) and use their styles.
 
@@ -63,10 +64,10 @@
 It provides the CSS classes 
 
 - ```pure-custom-caret``` for the dropdown menu (to use if you are not using FontAwsome)
 - (no more needed) ```pure-menu-custom-separator-vertical``` to add a vertical separator to the horizontal menu
 - ```pure-custom-close``` for nicer ```x``` to close eventual modal views (to display modals, bootstrap-modal works quite well with Pure)
-- ```pure-custom-alert```, ```pure-custom-alert-error```, ```pure-custo-alert-success```, ```pure-custom-alert-warning```
+- ```pure-custom-alert```, ```pure-custom-alert-error```, ```pure-custom-alert-success```, ```pure-custom-alert-warning```
 - ```pure-menu-pull-right``` to align the menu to the right (must be in the same tag of ```pure-menu```, see [this example](http://jsfiddle.net/xUwCw/)). Thanks to [msweeney](https://github.com/msweeney) for this workaround.
 
 <!--
   The flag *EXPERIMENTAL* means that the functionality is not fully functional, you can try it and use it but its syntax/use could change in a next release. If you have a fix please add a pull request! 
   /-->