Readme: Added leading slash for shell example

README.md

@@ -61,7 +61,7 @@ Additionally, you'll need to copy debug symbols for debugging and crash reportin
 1. Create a [Cartfile][] that lists the frameworks you’d like to use in your project.
 1. Run `carthage update`. This will fetch dependencies into a [Carthage/Checkouts][] folder, then build each one or download a pre-compiled framework.
 1. On your application targets’ “General” settings tab, in the “Linked Frameworks and Libraries” section, drag and drop each framework you want to use from the [Carthage/Build][] folder on disk.
-1. On your application targets’ “Build Phases” settings tab, click the “+” icon and choose “New Run Script Phase”. Create a Run Script in which you specify your shell (ex: `bin/sh`), add the following contents to the script area below the shell:
+1. On your application targets’ “Build Phases” settings tab, click the “+” icon and choose “New Run Script Phase”. Create a Run Script in which you specify your shell (ex: `/bin/sh`), add the following contents to the script area below the shell:
 
   ```sh
   /usr/local/bin/carthage copy-frameworks